Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thanh » dong thanh, cong trinh, cong tan
doi chieu » doc hieu, doi chi, mot chieu
hoang anh » hoang minh, hoang van
dung cong » dung trong
cha dung » chan dung, kha dung, nha dung
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - ((cong thanh) or (hoang anh)) cha dung cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((cong thanh) OR (hoang anh)) cha dung cong dan van ban*.