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
ngang toan » nganh toan, quang toan
doi chieu » doc hieu, doi chi, ho chieu
tong cong » cong cong, dung cong, dang cong
dang toan » dang tran, dan toan, dung toan

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 chieu tinh - hanh doanh luan ((tong cong) OR (trong cong)) ((ngang toan) OR (dang toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu tinh - hanh doanh luan ((tong cong) OR (trong cong)) ((ngang toan) or (dang toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - hanh doanh luan ((tong cong) OR (trong cong)) ((ngang toan) or (dang toan)) cau*.