Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
van nang » van quang, van ban, van dong
danh dai » danh dau, danh di, danh sai
mai hoi » mai khoi, dai hoi, lai hoi
cao duc » dao duc, cao suc, giao duc
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet
v nang » va nang, vu nang, voi nang
ma hoi » xa hoi, ma hoa, me hoi
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: hoc sach ((v nang) or (van nang)) ((ma hoi) or (mai hoi)). lieu va cao duc va danh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ((v nang) OR (van nang)) ((ma hoi) OR (mai hoi)). lieu va cao duc va danh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: hoc sach ((v nang) or (van nang)) ((ma hoi) or (mai hoi)). lieu va cao duc va danh dai cua tre*.