Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
suc van » su van, duc van, luc van
cua tre » cua te, cuu tre, cua triet
sang ma » tang ma, nang ma, sang tao
ve cao » va cao, ve cac, ve co
y sang » _ sang, duy sang
ma hoi » mai hoi, xa hoi, ma hoa
anh vi » hanh vi, anh va, anh vu
anh ve » hanh ve, anh va, anh viet
ve bao » te bao, va bao

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 y sang ma hoi. hieu ((ve cao) or (ve bao)) suc van ((anh vi) OR (anh ve)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y sang ma hoi. hieu ((ve cao) OR (ve bao)) suc van ((anh vi) OR (anh ve)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach y sang ma hoi. hieu ((ve cao) or (ve bao)) suc van ((anh vi) OR (anh ve)) cua tre".
• Adding a wildcard symbol may retrieve word variants: thuat sach y sang ma hoi. hieu ((ve cao) or (ve bao)) suc van ((anh vi) OR (anh ve)) cua tre*.