Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
hanh huong » thanh huong, anh huong, manh huong
cong doanh » cong danh, cong doan, dong doanh
huong cua » dung cua
dang cong » dung cong
doanh van » doan van, doanh va, doanh ban
cua dang » cua cong, cua ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (chieu sang)) - hanh huong cua dang cong doanh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (chieu sang)) - hanh huong cua dang cong doanh van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (chieu sang)) - hanh huong cua dang cong doanh van ban*.