Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
huong cua » dung cua
cua nhung » va nhung
cong dan » huong dan, cong dong, cong tac
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac

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

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