Perhaps you should try some spelling variations:
transfer model » transfer models, transfer money, transfer der
des transfers » net transfers, cash transfers, arms transfers
data transfer » cash transfer, heat transfer
transfers ai » transfers i, transfers bei, transfers dau
ai maria » avi maria, vi maria, qazi maria
model a » model 1
luis a » luis f, luis c

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 _ des transfers ai maria ) OR ( luis a data transfer model a ))~.
• Adding a wildcard symbol may retrieve word variants: (( luis _ des transfers ai maria ) or ( luis a data transfer model a ))*.