Perhaps you should try some spelling variations:
chiet tach » chieu sach
canh doanh » hanh doanh, chinh doanh, doanh doanh
cong thanh » dong thanh, cong trinh, cong tan
doi chiet » doi chieu, doi chi, doi viet
doanh cua » doanh luan
cua khong » hua khong, cua phuong, cua thuong
chinh can » chinh ca, chinh ban, chinh cau
cong san » cong tac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chiet tach - canh doanh cua khong ((cong san) or (cong thanh)) chinh can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chiet tach - canh doanh cua khong ((cong san) OR (cong thanh)) chinh can.
• Adding a wildcard symbol may retrieve word variants: doi chiet tach - canh doanh cua khong ((cong san) or (cong thanh)) chinh can*.