Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
luan chung » luan chinh
theo chua » theo chu, ho chua, cheo cua
chua xang » chua nang, chuc nang, chu bang
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan ban » van ban

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chua xang - canh tranh luan chung ((cong dan) OR (cong san)) toan ban~".
• Adding a wildcard symbol may retrieve word variants: theo chua xang - canh tranh luan chung ((cong dan) OR (cong san)) toan ban*.