Perhaps you should try some spelling variations:
doanh luan » doanh nhan
nhung cong » dung cong, thong cong, hang cong
mot chieu » ho chieu
doi chieu » doc hieu, doi chi, ho chieu
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan dau » phan tu, hang dau

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: ((mot chieu) OR (doi chieu)) xanh - lanh ((doanh cua) OR (doanh luan)) nhung cong tan phan dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((mot chieu) or (doi chieu)) xanh - lanh ((doanh cua) OR (doanh luan)) nhung cong tan phan dau~".
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (doi chieu)) xanh - lanh ((doanh cua) OR (doanh luan)) nhung cong tan phan dau*.