Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » hanh trinh, hanh trang, lanh tranh
ho chieu » theo chieu, hoc thieu, doi chieu
dan toan » dan than, manh toan, xuan toan
van toan » van tuan, van tan, van thanh
va dung » van dung, va duong, vat dung

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