Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
dung cong » dung trong
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac
thanh ca » thanh cha, thanh cac, thanh ha
tung ha » trung ha, dung ha, tung ho
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 tung ha dung cong san ((than cap) OR (thanh ca))~.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh tung ha dung cong san ((than cap) or (thanh ca))*.