Perhaps you should try some spelling variations:
transformer flows » transformer les, transformer load, transport flows
dc transformer » _ transformer, 3 transformer, a transformer
transfer beim » transfer bei, transfers bei, transfer axiom
beim adam » bei adam
luis a » luis f, luis c
a heat » a heart, _ heat, a head
rene » rent, gene

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 rene dc transformer flows across ) OR ( luis a heat transfer beim adam ))~.
• Adding a wildcard symbol may retrieve word variants: (( luis rene dc transformer flows across ) or ( luis a heat transfer beim adam ))*.