Perhaps you should try some spelling variations:
doanh phan » doanh nhan, doan phan, doanh thanh
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
cua nhung » va nhung
nhung don » nhung van, nhung bo
don doanh » dong doanh, von doanh, doi doanh
van manh » van minh, van anh, van hanh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - ((van manh) or (cach mang)) cua nhung don doanh phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - ((van manh) OR (cach mang)) cua nhung don doanh phan tu.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - ((van manh) or (cach mang)) cua nhung don doanh phan tu*.