Perhaps you should try some spelling variations:
transfers test » transform test, transfers bei, transfers ein
transfer west » transfer cost, transfer costs, transfer agent
den transfer » gene transfer, heat transfer, data transfer
transfer bei » transfer beim, transfers bei, transfer der
bei maria » bei martin, bei martha, de maria
luis a » luis f, luis c
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 bei maria ) OR ( luis a water ((transfers test) OR (transfer west)) _ ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( luis a den transfer bei maria ) or ( luis a water ((transfers test) OR (transfer west)) _ ))~".
• Adding a wildcard symbol may retrieve word variants: (( luis a den transfer bei maria ) or ( luis a water ((transfers test) OR (transfer west)) _ ))*.