Perhaps you should try some spelling variations:
thuoc sach » nuoc sach, thuat sach, thuoc sinh
hoc sach » hoc sinh, hoc cac
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
hanh lai » hanh lam, hanh tai, thanh lap
chau tre » chay tren, chau tho, cho tre
hoc anh » hoc nganh, hoc nhanh, ngoc anh
qua cac » cua cac
va hanh » van hanh, va thanh, va danh
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sach) or (((hoc sach) or (hoc anh)))) ky nang x hoi. hieu qua cac nuoc va hanh lai chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (((hoc sach) OR (hoc anh)))) ky nang x hoi. hieu qua cac nuoc va hanh lai chau tre.
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) or (((hoc sach) or (hoc anh)))) ky nang x hoi. hieu qua cac nuoc va hanh lai chau tre*.