Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh qua » tranh cua, thanh qua, trinh qua
song cong » cong cong, tong cong, song hong
ho chieu » theo chieu, hoc thieu, doi chieu
van toan » van tuan, van tan, van thanh
dan toan » dan than, manh toan, xuan toan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh tranh qua song cong ((van toan) OR (dan toan)) cau~.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh tranh qua song cong ((van toan) or (dan toan)) cau*.