Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
thieu tang » nhieu tang, thieu khang, thieu quang
doanh luan » doanh nhan
hoc thieu » toc thieu, hoc hien
luan hung » luan chung, lan hung, luan ung
cong lang » cong vang, cong luong, cong quang
cong tan » cong tac, cong san, cong thanh

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: hoc thieu tang - chinh doanh luan hung ((cong tan) OR (cong lang)) van ban~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tang - chinh doanh luan hung ((cong tan) or (cong lang)) van ban*.