Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
anh thai » anh thi, anh tai, nhanh thai
thai cua » than cua, tai cuc, tri cua
te sach » toc sach
ky dang » ky nang, ky danh
van cac » van hac, van cau, van bac
cac dac » cac dan, cac dai, cac bac
dac tan » duc tan, dac san, dai tan
tan anh » tuan anh, tran anh, toan anh
cua tre » cua te, cuu tre, cua triet
y dang » 2 dang, _ dang, b dang

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((y dang) or (ky dang)) xa hoi. hieu van cac dac tan anh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y dang) OR (ky dang)) xa hoi. hieu van cac dac tan anh thai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((y dang) or (ky dang)) xa hoi. hieu van cac dac tan anh thai cua tre*.