Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh manh » lanh manh, cach mang, van manh
dung ngan » dung nhan
ho chieu » theo chieu, hoc thieu, doi chieu
van toan » van tuan, van tan, van thanh
toan ban » van ban
luan » quan, lan

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 xanh - ((canh manh) or (canh tranh)) cua ((dung ngan) OR (dung luan)) van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - ((canh manh) OR (canh tranh)) cua ((dung ngan) OR (dung luan)) van toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - ((canh manh) or (canh tranh)) cua ((dung ngan) OR (dung luan)) van toan ban".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((canh manh) or (canh tranh)) cua ((dung ngan) OR (dung luan)) van toan ban*.