Perhaps you should try some spelling variations:
quang quang » quan quang, dang quang, dung quang
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tran » thanh trang, thanh toan, thanh tra
hieu manh » hieu nganh, dieu hanh, hien hanh
dung dang » dung dan, dung dong, dung dung
dung danh » dung doanh, dung dan, cuong danh
hang cau » hang dau, hang ca, nhung cau

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 manh) OR (chieu xanh)) - thanh tran quang quang ((dung dang) or (dung danh)) hang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu manh) OR (chieu xanh)) - thanh tran quang quang ((dung dang) OR (dung danh)) hang cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu manh) OR (chieu xanh)) - thanh tran quang quang ((dung dang) or (dung danh)) hang cau".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu manh) OR (chieu xanh)) - thanh tran quang quang ((dung dang) or (dung danh)) hang cau*.