Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
tranh luan » trinh luan, trinh luat, doanh luan
luan chung » luan chinh
hoc chieu » hoc thieu, ho chieu, hoc hien
duong van » duong va, luong va, dang van
cong san » cong tac
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu xanh - canh tranh luan chung ((cong san) or (duong van)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - canh tranh luan chung ((cong san) OR (duong van)) toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - canh tranh luan chung ((cong san) or (duong van)) toan ban*.