Perhaps you should try some spelling variations:
transfer agents » transfer payments, transfer amounts, transfer payment
transfers bei » transfer bei, transfer beim, transfers ai
data transfer » cash transfer, heat transfer
agents case » ages case, events case, agencies case
bei marc » bei marx, bei maria, bei carl
luis rdf » luis de
rdf data » dlf data, imf 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 f _ transfers bei marc ) OR ( luis rdf data transfer agents case ))~.
• Adding a wildcard symbol may retrieve word variants: (( luis f _ transfers bei marc ) or ( luis rdf data transfer agents case ))*.