Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
hanh dung » thanh dung, hanh dong, manh dung
cua nhung » va nhung
luan bang » luan nang, luan tang, tuan bang
anh dung » anh dong, anh huong, sach dung
cong van » cong vang, cong san, song van
luan ban » luan van, luan san, luan han

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 dung) OR (anh dung)) cua nhung cong van ((luan ban) OR (luan bang))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((hanh dung) OR (anh dung)) cua nhung cong van ((luan ban) or (luan bang))~".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((hanh dung) OR (anh dung)) cua nhung cong van ((luan ban) or (luan bang))*.