Perhaps you should try some spelling variations:
transfer agent » transfer agents, transfer payment, transfer amount
den transfer » gene transfer, heat transfer, data transfer
transfer bei » transfer beim, transfers bei, transfer der
agent case » agent based, ageing case, age case
bei marc » bei marx, bei maria, bei carl
imf data » imf's data, rdf data
dlf data » rdf data
luis a » luis f, luis c
a den » _ den, a der, a des

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 a den transfer bei marc ) OR ( luis ((imf data) OR (dlf data)) transfer agent case ))~.
• Adding a wildcard symbol may retrieve word variants: (( luis a den transfer bei marc ) or ( luis ((imf data) or (dlf data)) transfer agent case ))*.