Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
manh hung » anh huong
nang phan » nang phat, nang thanh, nang quan
hung cap » cung cap, hung ca, trung cap
han cong » phan cong, hang cong, hanh cong
cong tan » cong tac, cong san, cong thanh
tan nang » van nang, tin nang, ban nang
hieu ca » hieu cac, hieu cua, hieu va
cap han » cap phan, cap can, cap hay

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((hieu ca) or (chieu sach)) - manh hung cap han cong tan nang phan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((hieu ca) OR (chieu sach)) - manh hung cap han cong tan nang phan*.