Perhaps you should try some spelling variations:
quang phuong » bang phuong, dung phuong, hoang phuong
luan phuong » lan phuong, doan phuong, luat thuong
hieu xanh » chieu xanh, hieu nganh, dieu hanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong sang » cong san, cong lang, cong vang
sang than » cang thang, dang thanh, sang tao
anh dang » anh dong, anh dung, anh bang
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) OR (hieu manh)) - anh dang ((luan phuong) or (quang phuong)) cong sang than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (hieu manh)) - anh dang ((luan phuong) OR (quang phuong)) cong sang than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) OR (hieu manh)) - anh dang ((luan phuong) or (quang phuong)) cong sang than cap".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) OR (hieu manh)) - anh dang ((luan phuong) or (quang phuong)) cong sang than cap*.