Perhaps you should try some spelling variations:
quan nhung » qua nhung, cua nhung, luan chung
nhung cong » dung cong, thong cong, hang cong
chua nang » chuc nang, chua xang, kha nang
hanh dung » thanh dung, anh dung, hanh dong
dung quan » dung quang, dung luan, luong quan
chu xanh » chu manh, chieu xanh, chua xang
dan toan » dan than, manh toan, xuan toan
van toan » van tuan, van tan, van thanh

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 (chua nang)) - hanh dung quan nhung cong ((dan toan) OR (van toan)) cau~.
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chua nang)) - hanh dung quan nhung cong ((dan toan) or (van toan)) cau*.