Perhaps you should try some spelling variations:
transformed em » transformed _, transformed 1, transformer les
transformed a » transformed _, transformed 1, transformer 1
head transfer » heat transfer, heart transfer, load transfer
transfer bei » transfer beim, transfers bei, transfer der
guias de » guia de, guide de, aguas de
bei acao » de acao, bei aal, bei adam
de has » de haas, he has, dm has
luis a » luis f, luis c
a head » _ head

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: (( guias de has ((transformed em) OR (transformed a)) acao ) OR ( luis a head transfer bei acao ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( guias de has ((transformed em) OR (transformed a)) acao ) or ( luis a head transfer bei acao ))~".
• Adding a wildcard symbol may retrieve word variants: (( guias de has ((transformed em) OR (transformed a)) acao ) or ( luis a head transfer bei acao ))*.