Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
doi chieu » doc hieu, doi chi, mot chieu
luan cong » luat cong, luong cong, luan chung
cong cong » cong dong, trong cong, dung cong
ho chieu » theo chieu, hoc thieu, mot chieu
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) OR (doi chieu)) tinh - canh tranh luan cong cong ((xuan toan) or (dan than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) tinh - canh tranh luan cong cong ((xuan toan) OR (dan than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) tinh - canh tranh luan cong cong ((xuan toan) or (dan than)) cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) tinh - canh tranh luan cong cong ((xuan toan) or (dan than)) cau*.