Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doc chieu » doc hieu, doi chieu, toc thieu
trang van » trang va, trong van, tang van
tran van » luan van
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc chieu xanh - hanh ((trang van) or (tran van)) dung ((cong dan) or (cong san)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc chieu xanh - hanh ((trang van) OR (tran van)) dung ((cong dan) OR (cong san)) toan ban.
• Adding a wildcard symbol may retrieve word variants: doc chieu xanh - hanh ((trang van) or (tran van)) dung ((cong dan) or (cong san)) toan ban*.