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
nhan chong » nhanh chong, nhan khong, nhan thong
chong cong » cong cong, thong cong, cuong cong
dang van » hoang van, hang va
dan van » doan van, dao van, tan 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 nhan chong cong ((dan van) OR (dang van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (hieu quang)) - canh doanh nhan chong cong ((dan van) OR (dang van)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (hieu quang)) - canh doanh nhan chong cong ((dan van) OR (dang van)) ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (hieu quang)) - canh doanh nhan chong cong ((dan van) OR (dang van)) ban*.