Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
phung cong » phong cong, nhung chong, dung cong
nhung cong » dung cong, thong cong, hang cong
theo chu » theo chieu, cho chu, chao chu
chu tinh » chau tinh, chua tinh, cuu tinh
dan toan » van toan, dan than, 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 chu tinh - canh tranh luan ((phung cong) or (nhung cong)) dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu tinh - canh tranh luan ((phung cong) OR (nhung cong)) dan toan cau*.