Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh quan » tinh quang, trinh luat
doanh phan » doanh nhan, doanh thanh, doanh luan
doi chieu » doc hieu, doi chi, ho chieu
cong cong » cong dong, trong cong, dung cong
doan phan » toan phan, dan phan, doanh nhan

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: doi chieu xanh - hanh ((trinh han) OR (trinh quan)) cong cong ((doan phan) OR (doanh phan)) cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - hanh ((trinh han) OR (trinh quan)) cong cong ((doan phan) or (doanh phan)) cac~".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh ((trinh han) OR (trinh quan)) cong cong ((doan phan) or (doanh phan)) cac*.