Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thuong dai » thuong mai, truong dai, thuong dam
cong hoan » cong hoa, dong hoa, cong ha
cong san » cong tac
van tan » van tuan, van ban, van tai
tan cao » toan cao, tao cao, tay cao

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 thuong dai ((cong hoan) OR (cong san)) van tan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - thanh thuong dai ((cong hoan) OR (cong san)) van tan cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh thuong dai ((cong hoan) OR (cong san)) van tan cao*.