Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh doan » thanh toan, thinh doan, thanh dan
thanh loan » thanh toan, thanh hoang, thanh hoa
quang dung » quang trung, ung dung, cuong dung
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
tan toan » tap toan, van toan, dan toan

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: doi chieu sach - ((thanh doan) OR (thanh loan)) quang dung cong ((tan toan) OR (tan tran)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - ((thanh doan) OR (thanh loan)) quang dung cong ((tan toan) or (tan tran)) cau~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((thanh doan) OR (thanh loan)) quang dung cong ((tan toan) or (tan tran)) cau*.