Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu quang » thieu quang, hieu quan, hieu qua
canh doanh » hanh doanh, chinh doanh, doanh doanh
luan chong » luan cong, luan phong, luan phuong
luan chung » luan chinh
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: ho ((chieu xanh) or (hieu quang)) - canh doanh ((luan chong) OR (luan chung)) cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (hieu quang)) - canh doanh ((luan chong) OR (luan chung)) cong dan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (hieu quang)) - canh doanh ((luan chong) OR (luan chung)) cong dan van ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (hieu quang)) - canh doanh ((luan chong) OR (luan chung)) cong dan van ban*.