Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
canh doanh » hanh doanh, chinh doanh, doanh doanh
doi chieu » doc hieu, doi chi, mot chieu
doanh cua » doanh luan
dung cong » dung trong
dang van » hoang van, hang va
van ha » van hoa, van chat, van hanh

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 - canh doanh cua ((dang cong) or (dung cong)) dang van ha~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - canh doanh cua ((dang cong) OR (dung cong)) dang van ha*.