Perhaps you should try some spelling variations:
dung doanh » dung dan, dung dong
hanh doanh » hang doanh, chinh doanh, doanh doanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
nhan hung » nhanh hung, phan hung, nhan ung
hung cong » nhung cong, hung cuong, phung cong
hoc hieu » hoc thieu, hoc hien, doc hieu
cong dan » cong san, cong tan, huong dan
gian cam » gian cham, gian cac, gia cam

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

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