Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
trung ha » trung hoc, trung tam, trung cap
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac
thanh ca » thanh cha, thanh cac, thanh ha
ha dung » hai dung, kha dung, nha dung

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh trung ha dung cong san ((than cap) OR (thanh ca))~.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh trung ha dung cong san ((than cap) or (thanh ca))*.