Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
hinh dinh » binh dinh, trinh dinh, hinh anh
ve chang » ve chong, ve chung, ve chuong
tan toan » tan tran, tap toan, dan toan
van toan » van tuan, van tan, van thanh
ve hang » ve hoang, va hang, ve hanh

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 - hinh dinh ((ve hang) OR (ve chang)) nong ((tan toan) OR (van toan)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hinh dinh ((ve hang) or (ve chang)) nong ((tan toan) OR (van toan)) cao~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hinh dinh ((ve hang) or (ve chang)) nong ((tan toan) OR (van toan)) cao*.