Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh dung » thanh duong, thanh tung, thanh hung
cho thuong » cho truong, cho chuong, cao thuong
doi chieu » doc hieu, doi chi, mot chieu
xuong dan » huong dan, xuong san, nguong dan
tuong dan » huong dan, tung dan, truong dai

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh dung cho thuong ((xuong dan) OR (tuong dan)) van ban~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh dung cho thuong ((xuong dan) OR (tuong dan)) van ban*.