Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
tieu xanh » tieu danh, chieu xanh, dieu hanh
tranh cua » doanh cua, manh cua
dang cong » dung cong
cua dang » cua cong, cua ban
san toan » van toan, manh toan, xuan toan
dan toan » van toan, dan than, manh toan

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 tranh cua dang cong ((san toan) or (dan toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh tranh cua dang cong ((san toan) OR (dan toan)) cau*.