Perhaps you should try some spelling variations:
nham nang » phap nang, cam nang, kha nang
tham lang » pham hang, thai bang, pham dang
toc sach » hoc sach, doc sach, thuoc sach
cao truc » cau truc, vao truc, cao thuoc
hanh lai » hanh lam, hanh tai, thanh lap
hieu va » lieu va, hieu qua
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet
va cao » va cac, va co, va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ((nham nang) or (tham lang)) xa hoi. hieu va cao truc va hanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ((nham nang) OR (tham lang)) xa hoi. hieu va cao truc va hanh lai cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ((nham nang) or (tham lang)) xa hoi. hieu va cao truc va hanh lai cua tre*.