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
dung cong » dung trong
thanh cha » thanh ha, thanh nha, thanh phan
trung ha » trung hoc, trung tam, trung cap
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac
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: theo chieu sach - thanh trung ha dung cong san ((than cap) OR (thanh cha))~.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung ha dung cong san ((than cap) or (thanh cha))*.