Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
trung nhan » truong nhan, trung phan, trong nhan
nhan trong » nhuan trong, nhat trong, nhin trong
thanh van » thanh san, thanh toan, thanh phan
doanh ban » doanh bat, doanh van, doanh nhan
ho chieu » theo chieu, hoc thieu, mot chieu

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 nhan trong cong ((thanh van) or (doanh ban)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung nhan trong cong ((thanh van) OR (doanh ban)) ban.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung nhan trong cong ((thanh van) or (doanh ban)) ban*.