Perhaps you should try some spelling variations:
duong cong » dung cong, luong cong, duong trong
hieu xanh » chieu xanh, hieu manh, hieu nganh
cua duong » cua dong, cua huong, qua duong
thanh cac » hanh cac, thanh bac, thanh ca
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cong san » cong tac
than cap » khan cap, thanh lap, than cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: cao hieu xanh - anh tang cua duong cong san ((than cap) or (thanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cao hieu xanh - anh tang cua duong cong san ((than cap) OR (thanh cac)).
• Adding a wildcard symbol may retrieve word variants: cao hieu xanh - anh tang cua duong cong san ((than cap) or (thanh cac))*.