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Actitis is a small genus of waders, comprising just two very similar bird species.
The genus name is from Ancient Greek aktites, "coast-dweller" from akte, "coast".

1/ Common sandpiper (Choắt nhỏ, Actitis hypoleucos)

Anarhynchus is a genus of plovers formerly placed in the genus Charadrius.  The genus name is from Ancient Greek ana meaning "backward", and rhunkhosmeaning "bill".

1/ Greater sand plover (Choi choi lưng hung, Anarhynchus leschenaultii) 
The specific leschenaultii commemorates the French botanist Jean Baptiste Leschenault de la Tour.

2/ Kentish plover (Choi choi cổ khoang, Anarhynchus alexandrinus) 

3/ Malaysian plover (Choi choi lưng đen, Anarhynchus peronii)

4/ Siberian sand plover (Anarhynchus mongolus) 
The specific mongolus is Latin and refers to Mongolia, which at the time of naming referred to a larger area than the present country.
The species was previously known as  "lesser sand plover".

Anous, commonly known as the noddies, is a genus of seabirds in family Laridae.
Anous is Ancient Greek for "stupid" or "foolish", referring to the birds' unwariness or indifference to hunters, predators.

1/  Brown noddy or common noddy (Nhàn đầu xám, Anous stolidus)

Arenaria, commonly known as turnstone, is a genus of birds in the wader family Scolopacidae, containing only two species.
The genus name arenaria is from Latin arenarius, "inhabiting sand", from arena, "sand".

1/ Ruddy turnstone (Rẽ khoang, Arenaria interpres)
The specific epithet interpres means "messenger".

Burhinidae is a bird family which is often known as stone-curlews, or dikkops or thick-knees.
The family contains three genera: Hesperoburhinus, Burhinus and Esacus. The name Burhinus combines the Ancient Greek bous meaning "ox" and rhis, rhinos meaning "nose" (or "bill").

The stone-curlews are not closely related to the curlews, genus Numenius, that belong to the sandpiper family Scolopacidae.

Burhinus is a genus of birds in the family Burhinidae. The genus name Burhinus comes from the Greek bous for ox, and rhis for nose.

1/ Eurasian stone-curlew, Eurasian thick-knee, or simply stone-curlew (Burhinus oedicnemus) 
The species epithet oedicnemus combines the Greek oidio meaning "to swell", and kneme meaning "shin" or "leg".

Calidris is a genus of Arctic-breeding, strongly migratory wading birds in the family Scolopacidae. 
The genus name is from Ancient Greek kalidris or skalidris, a term used by Aristotle for some grey-coloured waterside birds.

1/ Spoon-billed sandpiper (Rẽ mỏ thìa, Calidris pygmaea)

2/ Curlew sandpiper (Rẽ bụng nâu, Calidris ferruginea)
The specific ferruginea is from Latin ferrugo, ferruginis, "iron rust" referring to its colour in breeding plumage.

3/ Red-necked stint (Rẽ cổ hung, Calidris ruficollis) 
The specific ruficollis is from Latin rufus, "red" and collum, "neck".

4/ Sanderling (Rẽ cổ xám, Calidris alba) 
The name derives from Old English sand-yrðling, "sand-ploughman".
The specific, alba, is Latin for "white".

5/ Sharp-tailed sandpiper (Rẽ đuôi nhọn, Calidris acuminata)
The specific acuminata is from Latin acuminatus, 'sharp, pointed'.

6/ Ruff (Rẽ lớn, Calidris pugnax)
formerly placed in different genera and was known as: Tringa pugnax, Philomachus pugnax
The specific epithet refers to the aggressive behaviour of the bird at its mating arenas — pugnax from the Latin term for "combative".

7/ Great knot (Rẽ lớn ngực đốm, Calidris tenuirostris)
The specific tenuirostris is from Latin tenuis "slender" and rostrum "bill".

8/ Temminck's stint (Rẽ Lưng đen, Calidris temminckii)
The specific epithet is from the name of a Dutch naturalist Coenraad Jacob Temminck.

9/ Red knot or just knot (Rẽ lưng nâu, Calidris canutus)

10/ Broad-billed sandpiper (Rẽ mỏ rộng, Calidris falcinellus)
The specific name falcinella is from falx, falcis, "a sickle. 
Some research suggests that it should rather go into the genus Philomachus.

11/ Long-toed stint (Rẽ ngón dài, Calidris subminuta) 
The specific subminuta is from Latin sub, "near to" and minuta, "small" from its similarity to the little stint, Calidris minuta.

12/ Little stint (Rẽ nhỏ, Calidris minuta or Erolia minuta)
The specific minuta is Latin for "small.

13/ Dunlin (Rẽ trán trắng, Calidris alpina)
formerly placed in the genus Erolia.
The specific alpina is from Latin and means "of high mountains", in this case referring to the Alps.
The English name derives from dun, "dull brown", with the suffix -ling, meaning a person or thing with the given quality.

The bird family Charadriidae includes the plovers, dotterels, and lapwings. The order is  Charadriiformes.

Charadriidae, Charadrius: Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate; from Ancient Greek kharadrios a bird found in ravines and river valleys (kharadra, "ravine").

Charadriiformes, from Charadrius, the type genus of family Charadriidae) is a diverse order of small to medium-large birds. 
Most members of this order can also collectively be referred to as shorebirds.

Charadriiformes, Charadriidae, Charadrius: Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate; from Ancient Greek kharadrios a bird found in ravines and river valleys (kharadra, "ravine").

Charadrius is a genus of plovers, a group of wading birds in the family Charadriidae, in the order Charadriiformes. 
The genus name Charadrius is a Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate. 

1/ Long-billed plover (Choi choi lớn, Charadrius placidus)

2/ Little ringed plover (Choi choi nhỏ, Charadrius dubius) 
The specific dubius is Latin for doubtful, since Sonnerat, writing in 1776, thought this bird might be just a variant of common ringed plover.

Chlidonias, often known as the marsh terns, is a genus of birds in family Laridae. 
The birds are found in freshwater marshes, rather than coastal locations. 
The genus name Chlidonias is from Ancient Greek khelidonios, "swallow-like", from khelidon, "swallow".

1/ Whiskered tern (Nhàn đen, Chlidonias hybrida)
The specific hybridus is Latin for hybrid.

2/ White-winged tern, or white-winged black tern (Nhàn xám, Chlidonias leucopterus or Chlidonias leucoptera)

Chroicocephalus is a genus of medium to relatively small gulls which were included in the genus Larus earlier.
The genus name Chroicocephalus is from Ancient Greek khroizo, "to colour", and kephale, "head".

1/ Black-headed gull (Chroicocephalus ridibundus)
The specific ridibundus is Latin for "abundant".

2/ Brown-headed gull (Mòng bể đầu nâu, Chroicocephalus brunnicephalus)

Esacus is a genus of bird in the stone-curlew family Burhinidae. The genus contains two species: the great stone-curlew and the beach stone-curlew.
The name is from Ancient Greek aisakos an unidentified bird variously associated with a robin, a shorebird or a cormorant.

1/ Great stone-curlew or great thick-knee (Rẽ mỏ to, Esacus recurvirostris)
The specific epithet recurvirostris combines Latin recurvis meaning "bent backwards" with -rostris meaning "-billed".

Gallinago is a genus of birds in the wader family Scolopacidae, containing 18 species.
The scientific name gallinago is Neo-Latin for a woodcock or snipe from Latin gallina, "hen" and the suffix -ago, "resembling".

1/ Swinhoe's snipe, (Dẽ giun Swinhoe, Gallinago megala), also known as forest snipe or Chinese snipe

2/ Common snipe (Rẽ giun, Gallinago gallinago)

3/ Pin-tailed snipe or pintail snipe (Rẽ giun Á châu, Gallinago stenura)

4/ Wood snipe (Rẽ giun lớn, Gallinago nemoricola)

Gelochelidon is a genus of terns in the bird family Laridae.
The name combines the Ancient Greek gelao meaning "to laugh" with khelidon meaning "swallow".

1/ Gull-billed tern (Nhàn chân đen, Gelochelidon nilotica), formerly Sterna nilotica
formerly placed in the genus Sterna.
The specific epithet nilotica is from Latin niloticus meaning "of the River Nile".

Glareola is a genus of birds in the family Glareolidae. 
The genus name is a diminutive of Latin glarea, "gravel", referring to a typical nesting habitat.

1/ Oriental pratincole (Dô nách nâu, Óc cau, Glareola maldivarum), also known as the grasshopper-bird or swallow-plover
The species name maldivarum refers to the type locality, the ocean near the Maldive Islands.

2/ Small pratincole, little pratincole, or small Indian pratincole (Dô nách xám, Glareola lactea)

Glareolidae is a family of birds in the wader suborder Lari, order Charadriiformes. It contains two distinct groups, the pratincoles and the coursers.

Hydrophasianus is a genus of birds in the family Jacanidae, in the order Charadriiformes.
The genus Hydrophasianus means "water pheasant"

1/ Pheasant-tailed jacana (Gà lôi nước, Hydrophasianus chirurgus)

Hydroprogne is a genus of terns in the bird family Laridae.
The genus name is from Ancient Greek hudros, "water", and Latin progne, "swallow".

1/ Caspian tern (Nhàn Caxpia, Hydroprogne caspia)
The specific caspia is from Latin and, like the English name, refers to the Caspian Sea.

Ichthyaetus is a genus of gulls. The genus name is from Ancient Greek ikhthus, "fish", and aetos, "eagle". They were previously included in the genus Larus.

1/ Pallas's gull (Mòng bể đầu đen lớn, Ichthyaetus ichthyaetus), also known as the great black-headed gull
earlier placed in the genus Larus.

2/ Relict gull or Central Asian gull (Mòng bể relic, Ichthyaetus relictus)