Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
hieu vien » hieu hien, lieu vien, thieu nien
thi nang » thi cong, ki nang, thi hanh
van hanh » van thanh, ban hanh, van anh
sach thi » sach thu, sach tai, sach thieu
te sach » toc sach
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
cua cau » cua cac, cua chu, cua cay
cho hoc » khoa hoc
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: te sach thi nang ((cho hoc) OR (co hoc)). ((hieu vien) or (hieu viec)) cac xuc van hanh vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thi nang ((cho hoc) OR (co hoc)). ((hieu vien) OR (hieu viec)) cac xuc van hanh vi cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thi nang ((cho hoc) OR (co hoc)). ((hieu vien) or (hieu viec)) cac xuc van hanh vi cua cau*".