Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
cua thuong » cua truong, cua phuong, ca thuong
doi chieu » doc hieu, doi chi, ho chieu
chinh cau » chinh chau, chinh ca, chinh can
cong cua » cong cu, dong cua, huong cua
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
can cau » van cau, ban cau, ca cau

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 cong cua thuong ((cong dan) OR (cong san)) ((can cau) OR (chinh cau))~.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh cong cua thuong ((cong dan) or (cong san)) ((can cau) or (chinh cau))*.