Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
chieu sach » chinh sach, chiet tach, chieu sang
cong thanh » dong thanh, cong trinh, truong thanh
doi chieu » doc hieu, doi chi, ho chieu
doanh cua » doanh luan
cong tan » cong tac, cong ty, cong ha
cong san » cong tac
toan cao » toan ban, toan tap

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 sach - doanh doanh cua cong ((((cong tan) OR (cong thanh))) OR (cong san)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - doanh doanh cua cong ((((cong tan) OR (cong thanh))) or (cong san)) toan cao~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - doanh doanh cua cong ((((cong tan) OR (cong thanh))) or (cong san)) toan cao*.