Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, ho chieu
tung cua » trung cua, tuong cua, dung cua
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
hang lap » hang la, hang tap, hang luan
sang lap » sang tao, sang ma, sang tai

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 - thanh tung cua cong ((cong ban) OR (cong san)) ((hang lap) or (sang lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh tung cua cong ((cong ban) OR (cong san)) ((hang lap) OR (sang lap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh tung cua cong ((cong ban) OR (cong san)) ((hang lap) or (sang lap))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh tung cua cong ((cong ban) OR (cong san)) ((hang lap) or (sang lap))*.