Perhaps you should try some spelling variations:
quang thanh » quan thanh, hoang thanh, muong thanh
hien nhanh » hien hanh, thien thanh, tien thanh
nhu phuong » thu phuong, nhung phuong, thi phuong
hien xanh » hien hanh, chieu xanh, hien khanh
thanh nhu » thanh ngu, thanh nha, hanh nhu
van thanh » ban thanh, van tuan
dan toan » van toan, dan than, manh toan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - nhanh quang thanh nhu phuong ((dan toan) OR (van thanh)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (hien nhanh)) - nhanh quang thanh nhu phuong ((dan toan) or (van thanh)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (hien nhanh)) - nhanh quang thanh nhu phuong ((dan toan) or (van thanh)) cau*.