Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
tranh luan » trinh luan, trinh luat, tang luan
doanh luan » doanh nhan
trinh cong » trinh dung
doc chieu » doc hieu, doi chieu, toc thieu
cong danh » cuong danh, cong dan, cong thanh
danh van » doanh van, dang van, dinh van

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 sang - thanh ((tranh luan) or (doanh luan)) trinh cong danh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc chieu sang - thanh ((tranh luan) OR (doanh luan)) trinh cong danh van ban.
• Adding a wildcard symbol may retrieve word variants: doc chieu sang - thanh ((tranh luan) or (doanh luan)) trinh cong danh van ban*.