Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hang cong » hang nong, bang cong, thong cong
dang cong » dung cong
tinh ban » tinh bang, trinh ban, tinh bac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap
ban cua » ban quan

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