Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
luan nhung » luan chung, luan hung, quan nhung
hanh dung » thanh dung, anh dung, hanh dong
manh toan » thanh toan, anh tuan, tinh toan
chu xanh » chu manh, chieu xanh, chua xang
dan toan » van toan, dan than, xuan toan
chuc » thuc, chua, phuc

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: theo ((chu xanh) OR (chuc nang)) - hanh dung luan nhung cong ((dan toan) OR (manh toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) or (chuc nang)) - hanh dung luan nhung cong ((dan toan) OR (manh toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chuc nang)) - hanh dung luan nhung cong ((dan toan) OR (manh toan)) cau*.