Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
luan chung » luan chinh
chung cong » nhung cong, chong cong, phung cong
25 trieu » 30 trieu
cong tan » cong tac, cong san, cong thanh
toan cao » toan tap
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: 25 trieu tinh - canh tranh luan chung cong tan ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: 25 trieu tinh - canh tranh luan chung cong tan ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: 25 trieu tinh - canh tranh luan chung cong tan ((toan cao) or (toan ban))*.