Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chiet » theo chieu, thep thiet
chiet tach » chieu sach
trung cua » truong cua, trung tuan, trung cap
cua dang » cua cong, cua ban
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chiet tach - thanh trung cua dang ((cong tan) or (cong tac)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chiet tach - thanh trung cua dang ((cong tan) OR (cong tac)) toan cao.
• Adding a wildcard symbol may retrieve word variants: theo chiet tach - thanh trung cua dang ((cong tan) or (cong tac)) toan cao*.