Perhaps you should try some spelling variations:
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
hanh dung » thanh dung, anh dung, hanh dong
cua nhung » va nhung
dung cua » dung luan, dung cho
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
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: theo hieu lang - hanh dung cua nhung ((cong tan) or (cong tac)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - hanh dung cua nhung ((cong tan) OR (cong tac)) toan ban.
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - hanh dung cua nhung ((cong tan) or (cong tac)) toan ban*.