Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
tranh luan » trinh luan, trinh luat, doanh luan
luan canh » luat canh, luan danh, luan anh
canh cong » hanh cong, anh cong, canh cung
dan toan » van toan, manh toan, xuan toan
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: hoc ((chieu xanh) or (dieu hanh)) - canh tranh luan canh cong ((dan toan) or (dan than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (dieu hanh)) - canh tranh luan canh cong ((dan toan) OR (dan than)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (dieu hanh)) - canh tranh luan canh cong ((dan toan) or (dan than)) cau*.