Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
trinh luan » trinh luat, trinh quan, trinh han
luan huong » luan phuong, luan luong, xuan huong
huong cong » luong cong, duong cong, cuong cong
van tinh » van thinh, van minh, ban tinh
tan toan » tan tran, tap toan, dan toan
van toan » van tuan, van tan, van thanh
so van » su van, vo van

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

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