Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
luan khong » luan phong, luan phuong, luong khong
khong dung » thong dung, phuong dung, cuong dung
dan phan » doan phan, dan chan, dam phan
van phan » van phong, van thanh, luan phan
hoi chu » hoi chuc
ho cuu » ho chu, ho cua, so cuu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho cuu) OR (hoi chu)) tinh - canh tranh luan khong dung ((dan phan) OR (van phan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho cuu) or (hoi chu)) tinh - canh tranh luan khong dung ((dan phan) OR (van phan)) cau~".
• Adding a wildcard symbol may retrieve word variants: ((ho cuu) or (hoi chu)) tinh - canh tranh luan khong dung ((dan phan) OR (van phan)) cau*.