Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
hieu xanh » chieu xanh, hieu manh, hieu nganh
tuan dang » tuan bang, tuan dung, tuan duong
tran dang » tran quang, tran hoang, tranh hang
doc hieu » toc thieu, hoc thieu, hoc hien
van than » van thanh, van thang, van tuan

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: doc hieu xanh - thanh tran ((tuan dang) OR (tran dang)) cong ((van than) OR (dan ca)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - thanh tran ((tuan dang) OR (tran dang)) cong ((van than) or (dan ca)) cau~".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh tran ((tuan dang) OR (tran dang)) cong ((van than) or (dan ca)) cau*.