Perhaps you should try some spelling variations:
den transfer » gene transfer, data transfer, land transfer
transfer der » transfer fees, transfer _
transfer dau » transfers dau, transfer a, transfer auf
der maria » der magia, pier maria, der markt
luis a » luis f, luis c
a heat » a heart, _ heat, a head
a den » _ den, a der, a des

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 a den transfer der maria ) OR ( luis a heat transfer dau _ ))~.
• Adding a wildcard symbol may retrieve word variants: (( luis a den transfer der maria ) or ( luis a heat transfer dau _ ))*.