Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh tang » hanh trang, hanh mang, hanh tung
luan tang » luan nang, lan tang, xuan trang
tang cong » tang cuong, trang cong, dang cong
anh tang » anh bang, anh dang, anh nang
dan toan » van toan, dan than, manh toan
ban than » ban thanh, van thanh, ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - ((hanh tang) or (anh tang)) luan tang cong ((dan toan) or (ban than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh tang) OR (anh tang)) luan tang cong ((dan toan) OR (ban than)) cao.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh tang) or (anh tang)) luan tang cong ((dan toan) or (ban than)) cao*.