Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
hanh dung » thanh dung, anh dung, hanh dong
ho chieu » theo chieu, hoc thieu, mot chieu
dung cua » dung luan, dung cho
dong dan » dong danh, duong dan, dong san
dan than » dan chan, ban than, van 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: ((doi chieu) or (ho chieu)) sang - hanh dung cua cong dong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) sang - hanh dung cua cong dong dan than ban.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) sang - hanh dung cua cong dong dan than ban*.