Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh huong » thanh huong, anh huong, manh huong
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
huong cua » dung cua
cua nhung » va nhung
cong san » cong tac
toan ban » van ban

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 - hanh huong cua nhung cong san ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh huong cua nhung cong san ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh huong cua nhung cong san ((toan tap) or (toan ban))*.