Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
nhung cong » thong cong, hang cong, nhung don
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
tran cau » tran chau, toan cau, ran cau

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 chieu tinh - hanh doanh luan ((nhung cong) OR (dung cong)) tan tran cau~.
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - hanh doanh luan ((nhung cong) or (dung cong)) tan tran cau*.