Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
canh doanh » hanh doanh, chinh doanh, kinh doanh
hieu lang » chieu sang, hieu quang, nhieu tang
cua nhung » va nhung
cong suat » nang suat, cong san, cong cua
cong sat » cong san, cong hat, cong nhat
phan dau » phan tu, hang dau
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - ((canh doanh) or (doanh doanh)) cua nhung ((cong sat) OR (cong suat)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - ((canh doanh) OR (doanh doanh)) cua nhung ((cong sat) OR (cong suat)) phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - ((canh doanh) or (doanh doanh)) cua nhung ((cong sat) OR (cong suat)) phan dau".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - ((canh doanh) or (doanh doanh)) cua nhung ((cong sat) OR (cong suat)) phan dau*.