Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van hang » van khang, van hoang, van thang
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
van cac » van hac, van cau, van bac
cac xuc » cam xuc, cac nuoc, chat xuc
va hang » va nang, va lang, va hanh
cua tre » cua te, cuu tre, cua triet
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: su sach v nang xa hoi. hieu van cac xuc ((va hang) OR (van hang)) dai cua tre~.
• Adding a wildcard symbol may retrieve word variants: su sach v nang xa hoi. hieu van cac xuc ((va hang) or (van hang)) dai cua tre*.