Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
dang cong » dung cong
lua dang » cua dang, lua sang, luan nang
cong tac » cong ty
tac phi » tac thi, tac phu, tac pham
phi phi » chi phi, phi thi, thi phi
va lua » va luat, ca lua, vi lua

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (trieu tinh)) - hang va lua dang cong tac phi phi~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (trieu tinh)) - hang va lua dang cong tac phi phi.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (trieu tinh)) - hang va lua dang cong tac phi phi*.