Perhaps you should try some spelling variations:
transfer using » transfers using, transformer using, transfer missing
transfers made » transfers have, transfers und
den transfer » gene transfer, heat transfer, data transfer
using more » using model, doing more, being more
made case » trade case, care case, made easy
imf data » imf's data, rdf data
dlf data » rdf data

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: (( luis _ den transfer using more ) OR ( luis ((imf data) OR (dlf data)) transfers made case ))~.
• Adding a wildcard symbol may retrieve word variants: (( luis _ den transfer using more ) or ( luis ((imf data) or (dlf data)) transfers made case ))*.