Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
cua nhung » va nhung
thang cau » thong cau, thanh chau, nhung cau
tung cua » trung cua, tuong cua, dung cua
cong san » cong tac
hang cau » hang dau, hang ca, nhung 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 tung cua nhung cong san ((thang cau) or (hang cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh tung cua nhung cong san ((thang cau) OR (hang cau)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh tung cua nhung cong san ((thang cau) or (hang cau))*.