Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
doanh phan » doanh nhan, doan phan, doanh thanh
lieu tinh » trieu tinh, diep tinh, bien tinh
nhung don » nhung van, nhung bo
hang cong » dang cong, hang nong, bang cong
doi lieu » duoc lieu, doi chieu, du lieu
trinh va » trinh van, trinh vat, trinh ve
phan cac » nhan cach, phan dau, phan lap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi lieu tinh - canh trinh va ((nhung don) OR (hang cong)) doanh phan cac~.
• Adding a wildcard symbol may retrieve word variants: doi lieu tinh - canh trinh va ((nhung don) or (hang cong)) doanh phan cac*.