Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
nhan phung » khanh phung, van phung, nha chung
hoc thieu » toc thieu, hoc hien
doc hieu » toc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
cong tac » cong ty
gian cau » gian chau, gian cac, gian cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (hoc thieu)) manh - hanh doanh nhan phung ((cong dan) or (cong tac)) gian cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) manh - hanh doanh nhan phung ((cong dan) OR (cong tac)) gian cau.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc thieu)) manh - hanh doanh nhan phung ((cong dan) or (cong tac)) gian cau*.