Perhaps you should try some spelling variations:
canh manh » lanh manh, canh tranh, van manh
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
theo chu » theo chieu, cho chu, chao chu
chu tinh » chau tinh, chua tinh, cuu tinh
dan toan » van toan, dan than, xuan toan
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: theo chu tinh - ((canh manh) or (cach mang)) va dung cong ((dan toan) or (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu tinh - ((canh manh) OR (cach mang)) va dung cong ((dan toan) OR (manh toan)) cau.
• Adding a wildcard symbol may retrieve word variants: theo chu tinh - ((canh manh) or (cach mang)) va dung cong ((dan toan) or (manh toan)) cau*.