Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
nhung don » nhung van, nhung bo
dung cong » dung trong
tan toan » tan tran, tap toan, dan toan
van toan » van tuan, van tan, van thanh

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: theo tieu xanh - hanh tang luan ((nhung don) OR (dung cong)) ((tan toan) OR (van toan)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh tang luan ((nhung don) or (dung cong)) ((tan toan) OR (van toan)) ban~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh tang luan ((nhung don) or (dung cong)) ((tan toan) OR (van toan)) ban*.