Perhaps you should try some spelling variations:
quan nhung » qua nhung, cua nhung, luan chung
cong thanh » dong thanh, cong trinh, cong tan
dung quan » dung quang, dung luan, luong quan
hanh dung » thanh dung, anh dung, hanh dong
cong manh » cong danh, duong manh, hoang manh
chu xanh » chu manh, chieu xanh, chua xang
toan tap » toan ban

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