Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
cua nhung » va nhung
cong cua » cong cu, dong cua, huong cua
cong tan » cong tac, cong san, cong thanh
tcan cau » toan cau, toan cao, van cau
can cau » van cau, ban cau, ca cau

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 cong cua nhung cong tan ((tcan cau) or (can cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh cong cua nhung cong tan ((tcan cau) OR (can cau))*.