Perhaps you should try some spelling variations:
transfer operations » transfer operators, transport operations, transit operations
operations frame » operations from, operations amp, operations state
ideas transport » ideas transform, india's transport, sea transport
transport bei » transport b, transport de, transport based
net transfer » net transfers, heat transfer, money transfer
bei mark » bei marx, bei marc, bei maria
luis i » luis f, luis c, luis a
i net » ic net, _ net, i new

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 _ ideas transport bei mark ) OR ( luis i net transfer operations frame ))~.
• Adding a wildcard symbol may retrieve word variants: (( luis _ ideas transport bei mark ) or ( luis i net transfer operations frame ))*.