Perhaps you should try some spelling variations:
luan trong » quan trong, luat trong, luan tuong
hanh dung » thanh dung, anh dung, hanh dong
nhung cau » chung cu, nhung bai, nhu cau
chao chu » cho chu, cua chu, cao cho
chu sang » chu bang, thu sang, chieu sang
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh
hang cau » hang dau, hang ca, nang cao

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: chao chu sang - hanh dung luan trong ((cong ban) OR (cong tan)) ((hang cau) OR (nhung cau))~.
• Adding a wildcard symbol may retrieve word variants: chao chu sang - hanh dung luan trong ((cong ban) or (cong tan)) ((hang cau) or (nhung cau))*.