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

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