Perhaps you should try some spelling variations:
tran thanh » quan thanh
hieu xanh » chieu xanh, hieu manh, hieu nganh
van thanh » van tuan
nhung don » nhung van, nhung bo
bang cong » dang cong, bang song, hang cong
ban thanh » ban hanh, ban hang
thanh cau » thanh chau, thanh mau, nhanh cau
doc hieu » toc thieu, hoc thieu, hoc hien

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