Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
doc hieu » toc thieu, hoc thieu, hoc hien
cong cua » cong cu, dong cua, huong cua
cua dong » chua dong, cua cong, cua dang
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - thanh cong cua dong ((cong tan) OR (cong tac)) than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - thanh cong cua dong ((cong tan) OR (cong tac)) than cap".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh cong cua dong ((cong tan) OR (cong tac)) than cap*.