Perhaps you should try some spelling variations:
luan trong » quan trong, luat trong, luan tuong
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
hanh dung » thanh dung, anh dung, manh dung
hanh dong » anh dong, ha dong
cong tan » cong tac, cong san, cong thanh
tan hang » tan khang, ban hang, van hang
hang cau » hang dau, hang ca, nhung cau

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: ho ((chieu sang) OR (hieu lang)) - ((hanh dung) OR (hanh dong)) luan trong cong tan hang cau~.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu lang)) - ((hanh dung) or (hanh dong)) luan trong cong tan hang cau*.