Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
tranh luan » trinh luan, trinh luat, doanh luan
luan phan » luan van, luan hoan
phan cong » thanh cong
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » 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 ((chieu tinh) or (dieu hanh)) - canh tranh luan phan cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (dieu hanh)) - canh tranh luan phan cong san toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) or (dieu hanh)) - canh tranh luan phan cong san toan cau*.