Perhaps you should try some spelling variations:
transfer system » transfer systems, transport system, transit system
data transfer » cash transfer, heat transfer
transfer ein » transfers ein, transfer beim, transfer bei
system cas » system case, system can, systems case
aguas de » aguas del, aguas do, vagues de
die peer » die peers, ii peer, mit peer
de peer » de peter, der peer, de pee
ein cao » ein echo
de data » e data, wide data, de datos

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: (( aguas ((de peer) OR (die peer)) transfer ein cao ) OR ( aguas de data transfer system cas ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( aguas ((de peer) OR (die peer)) transfer ein cao ) or ( aguas de data transfer system cas ))~".
• Adding a wildcard symbol may retrieve word variants: (( aguas ((de peer) OR (die peer)) transfer ein cao ) or ( aguas de data transfer system cas ))*.