Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van anh » van thanh, tuan anh, van minh
suc van » su van, duc van, luc van
cua tre » cua te, cuu tre, cua triet
ve cao » va cao, ve cac, ve co
ve bao » te bao, va bao
ma hoi » mai hoi, ma hoa, me hoi
anh vi » hanh vi, anh va, anh ve
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach _ sang ((ma hoi) or (xa hoi)). hieu ((ve cao) or (ve bao)) suc van anh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach _ sang ((ma hoi) OR (xa hoi)). hieu ((ve cao) OR (ve bao)) suc van anh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: thuat sach _ sang ((ma hoi) or (xa hoi)). hieu ((ve cao) or (ve bao)) suc van anh vi cua tre*.