Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh hang » thanh hang, hang hang, hanh han
dang cong » dung cong
hang tai » hang va, dung tai
tai dang » tai lang, dai dang, hai dang
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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 hang tai dang cong ((dan toan) OR (dan than)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh hang tai dang cong ((dan toan) OR (dan than)) cao".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh hang tai dang cong ((dan toan) OR (dan than)) cao*.