Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
cong bang » cuong bang, dong bang, hong bang
thanh cao » thanh ca, thanh cac, thanh thao
cua dang » cua cong
cong ban » cong san, cong tan, cong dan

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 trung ((cua ban) or (cua dang)) ((cong ban) OR (cong bang)) thanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung ((cua ban) OR (cua dang)) ((cong ban) OR (cong bang)) thanh cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - thanh trung ((cua ban) or (cua dang)) ((cong ban) OR (cong bang)) thanh cao*".