Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
quan nhung » qua nhung, cua nhung, luan chung
hanh nang » anh nang, ganh nang, hanh mang
nang quan » ban quan, nang suat
hoi hieu » hoi phieu, moi hieu, doi chieu
hoi tieu » hoc tieu, hoi tiep, loi tieu
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan cau » phan dau, phan cac, phan tu
ho hieu » ho chieu, nho hieu, co hieu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho hieu) OR (((hoi hieu) OR (hoi tieu)))) lang - hanh nang quan nhung cong tac phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho hieu) or (((hoi hieu) OR (hoi tieu)))) lang - hanh nang quan nhung cong tac phan cau~".
• Adding a wildcard symbol may retrieve word variants: ((ho hieu) or (((hoi hieu) OR (hoi tieu)))) lang - hanh nang quan nhung cong tac phan cau*.