Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
tranh va » tranh van, trang va, trinh va
tran van » luan van
cong dan » cong san, cong tan, huong dan
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap

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 - canh ((tranh va) OR (tran van)) nhung cong dan ((phan cau) OR (phan cac))~.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - canh ((tranh va) or (tran van)) nhung cong dan ((phan cau) or (phan cac))*.