Perhaps you should try some spelling variations:
transformer les » transformer 1, transformer _, transformer based
head transfer » heat transfer, heart transfer, load transfer
transfer bei » transfer beim, transfers bei, transfer der
les across » lines across, lives across, smes across
bei macro » bei marx, new macro, bei marc
etude et » etude des, etude de
ende et » ende der, ende des, monde et
luis de » luis e
de head » her head, per head, red head
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 et) OR (etude et)) transformer les across ) OR ( luis de head transfer bei macro ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( bis ((ende et) OR (etude et)) transformer les across ) or ( luis de head transfer bei macro ))~".
• Adding a wildcard symbol may retrieve word variants: (( bis ((ende et) OR (etude et)) transformer les across ) or ( luis de head transfer bei macro ))*.