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
a heat » a heart, _ heat, a health
a head » _ 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) OR (a head)) transfer beim adam ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( luis rene dc transformer flows across ) or ( luis ((a heat) OR (a head)) transfer beim adam ))~".
• Adding a wildcard symbol may retrieve word variants: (( luis rene dc transformer flows across ) or ( luis ((a heat) OR (a head)) transfer beim adam ))*.