Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh huong » thanh huong, anh huong, canh huong
manh huong » anh huong, manh hung, manh cuong
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cua dung » cua dang, cua dong, qua dung
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than ban » thanh ban, toan ban, than man

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

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