Perhaps you should try some spelling variations:
transformer spanned » transformer based
des transformer » dc transformer, se transformer, _ transformer
spanned across » shared across, space across
transfer beim » transfer bei, transfers bei, transfer axiom
net transfer » net transfers, heat transfer, money transfer
beim marc » bei marc
ende des » ende der
luis a » luis f
luis c » luis f
bis » bias

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: (( bis ende des transformer spanned across ) OR ( ((luis a) OR (luis c)) net transfer beim marc ))~.
• Adding a wildcard symbol may retrieve word variants: (( bis ende des transformer spanned across ) or ( ((luis a) or (luis c)) net transfer beim marc ))*.