Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
trung cua » truong cua, trung tuan, trung cap
ho chieu » theo chieu, hoc thieu, doi chieu
cua bang » chua bang, cua ban, cua dang
cong tac » cong ty
tran tan » tran tuan, tran van, tran thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - thanh trung cua bang ((cong san) OR (cong tac)) tran tan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh trung cua bang ((cong san) OR (cong tac)) tran tan".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung cua bang ((cong san) OR (cong tac)) tran tan*.