Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
cang thang » cong thanh, dang thanh
doi chieu » doc hieu, doi chi, ho chieu
thong qua » thong quan, thong cua, duong qua
dung cong » dung trong
sang than » dang thanh, sang tao, ban than
thong tu » phong tuc, thong tin, thong ke

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 - thanh ((thong qua) OR (thong tu)) dung cong ((sang than) OR (cang thang)) cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - thanh ((thong qua) OR (thong tu)) dung cong ((sang than) or (cang thang)) cap~".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh ((thong qua) OR (thong tu)) dung cong ((sang than) or (cang thang)) cap*.