Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
suc van » su van, duc van, luc van
cac suc » cao suc, cac nuoc, cac cuoc
sach ly » sach y, sach lo, sach ty
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
ly nang » ky nang, ly hang, ly vang
ma hoi » mai hoi, xa hoi, me hoi
anh va » hanh va
anh ve » hanh ve, anh viet, thanh ve
ve cac » va cac, vien cac

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 ly nang ((ma hoi) or (ma hoa)). hieu ve cac suc van ((anh va) or (anh ve)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ly nang ((ma hoi) OR (ma hoa)). hieu ve cac suc van ((anh va) OR (anh ve)) cua tre.
• Adding a wildcard symbol may retrieve word variants: thuat sach ly nang ((ma hoi) or (ma hoa)). hieu ve cac suc van ((anh va) or (anh ve)) cua tre*.