Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung dong » nhung cong, nhung dung, nhung bong
doanh phan » doanh nhan, doan phan, doanh thanh
hieu lang » chieu sang, hieu quang, nhieu tang
canh manh » lanh manh, canh tranh, cach mang
nhung don » nhung van, nhung bo
manh cua » doanh cua, ban cua

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) or (hieu lang)) - canh manh cua ((nhung dong) OR (nhung don)) doanh phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (hieu lang)) - canh manh cua ((nhung dong) OR (nhung don)) doanh phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (hieu lang)) - canh manh cua ((nhung dong) OR (nhung don)) doanh phan tu".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (hieu lang)) - canh manh cua ((nhung dong) OR (nhung don)) doanh phan tu*.