Perhaps you should try some spelling variations:
hieu vien » hieu hien, lieu vien, thieu nien
hieu viec » nhieu viec, hieu ve, sieu viet
nang cho » nang chon, ngang cho, nang cao
luc van » luoc van, luu van, duc van
cac luc » cau luc, coc luc, cac nuoc
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
cho hoc » co hoc, khoa hoc
tu nang » tru nang, tu nong, tu nano
cua cau » cua cac, cua chu, cua cay
anh vi » anh va, anh ve, anh vu

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 tu nang cho hoc. ((hieu vien) or (hieu viec)) cac luc van ((anh vi) OR (hanh vi)) cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu nang cho hoc. ((hieu vien) OR (hieu viec)) cac luc van ((anh vi) OR (hanh vi)) cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu nang cho hoc. ((hieu vien) or (hieu viec)) cac luc van ((anh vi) OR (hanh vi)) cua cau*".