Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
tranh van » tran van, trinh van, thanh van
tong cong » trong cong, cong cong, dung cong
ban thanh » ban hanh, ban hang
van tong » van thong, van trong, van tuong
ban than » van thanh, ban hang, ban 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 tranh van tong cong ((ban than) or (ban thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - canh tranh van tong cong ((ban than) OR (ban thanh)) cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh tranh van tong cong ((ban than) or (ban thanh)) cau*.