Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
hieu lang » chieu sang, hieu quang, nhieu tang
doanh cua » doanh luan
cong dung » cuong dung, cong dong, cong luong
doi hieu » doi chieu, doc hieu, doi hien
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, than cap

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: doi hieu lang - hanh doanh cua cong ((cong dan) OR (cong dung)) than cau~.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - hanh doanh cua cong ((cong dan) or (cong dung)) than cau*.