Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh huong » thanh huong, anh huong, canh huong
manh huong » anh huong, manh hung, manh cuong
dung cong » dung trong
ho chiet » ho chieu, ho thiet, hoc thiet
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
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 chiet tach - ((hanh huong) or (manh huong)) cua dung cong tan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - ((hanh huong) OR (manh huong)) cua dung cong tan than ban.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - ((hanh huong) or (manh huong)) cua dung cong tan than ban*.