Perhaps you should try some spelling variations:
thanh tranh » thanh thanh, thanh tran, thanh trang
tranh luan » trinh luan, trinh luat, doanh luan
luan chung » luan chinh
doi chieu » doi chi, ho chieu, mot chieu
doc hieu » toc thieu, hoc thieu, hoc hien
cong san » cong tac
song van » hoang van, trong van, duong van
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (doc hieu)) sang - thanh tranh luan chung ((cong san) or (song van)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) sang - thanh tranh luan chung ((cong san) OR (song van)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doc hieu)) sang - thanh tranh luan chung ((cong san) or (song van)) toan cau*.