Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh hang » thanh hang, hang hang, hanh han
cua thong » cua thuong, cua khong, cua tong
hua khong » hoa khong, cua khong, hoac khong
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap

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 ((cua thong) or (hua khong)) cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh hang ((cua thong) OR (hua khong)) cong san toan cao.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh hang ((cua thong) or (hua khong)) cong san toan cao*.