Perhaps you should try some spelling variations:
thanh dat » thanh san, thanh hai, thanh van
bat thanh » ban thanh, bac thanh, dat thanh
te sach » toc sach
hieu va » lieu va, hieu qua
dat cua » dai cua, day cua, mat cua
luc bat » suc bat, luc nhat, luat bat
cam luc » cam xuc, cau luc
cua tre » cua te, cuu tre, cua triet
vu nang » vuc nang, va nang, vu dang
va cam » va cham, va cac, va cao
v nang » va nang, van nang, voi nang
x hoi » xa hoi, o hoi, 5 hoi

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 ((v nang) or (vu nang)) ((x hoi) or (x ho)). hieu va cam luc bat thanh dat cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((v nang) OR (vu nang)) ((x hoi) OR (x ho)). hieu va cam luc bat thanh dat cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((v nang) or (vu nang)) ((x hoi) or (x ho)). hieu va cam luc bat thanh dat cua tre*.