Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
truong cao » truong dai
doi chieu » doc hieu, doi chi, ho chieu
cao khong » cao phong, cat khong, dao khong
cong dan » cong san, cong tan, huong dan
cong tac » cong ty
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - thanh truong cao khong ((cong dan) or (cong tac)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh truong cao khong ((cong dan) OR (cong tac)) than cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh truong cao khong ((cong dan) or (cong tac)) than cau*.