Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
tang anh » trang anh, tang hanh, bang anh
tuc tang » thuc trang, duc thang, duc tan
hieu van » hieu va, thien van, lieu va
thi van » thi lan, thi hanh, thi nang
cao tuc » dao tuc, cao duc, cao suc
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
ma hoi » mai hoi, xa hoi, 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 ky nang ((ma hoi) or (ma hoa)). ((hieu van) or (thi van)) cao tuc tang anh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky nang ((ma hoi) OR (ma hoa)). ((hieu van) OR (thi van)) cao tuc tang anh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: thuat sach ky nang ((ma hoi) or (ma hoa)). ((hieu van) or (thi van)) cao tuc tang anh vi cua tre*.