Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhanh lang » nhanh thang, nhan dang, nhanh dong
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
cua nhung » va nhung
dan ban » van ban, dan ba, dan bac
can ban » van ban, toan ban

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 - ((nhanh lang) OR (nhanh quang)) cua nhung cong ((dan ban) OR (can ban)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((nhanh lang) or (nhanh quang)) cua nhung cong ((dan ban) OR (can ban)) cau~".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((nhanh lang) or (nhanh quang)) cua nhung cong ((dan ban) OR (can ban)) cau*.