Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
truong can » truong cao, truong van, truong ca
cong thanh » dong thanh, cong trinh, truong thanh
cong tan » cong tac, cong san, cong ty
than cau » toan cau, phan cau, than cap
can ban » van ban, toan ban

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

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