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
quang dung » quang trung, ung dung, cuong dung
hieu manh » hieu nganh, dieu hanh, hien hanh
dang hang » dang hoang, dang hung, hang hang
dang hanh » dang thanh, ban hanh, dang van

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

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