Perhaps you should try some spelling variations:
transports signal » transform signal, transports regional
des transports » bus transport, gas transport
transfer 3 » transfer _, transfer a, transfer 3.2
transfer 4 » transfer _, transfer a, transfer der
signal 3 » signals 3, signal _, signal 4
own des » own ses, own ideas, own best
guias 3 » guias de
3 basel » _ basel, 3 base, 3 based
aguas » agus, agua

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 own des transports signal 3 ) OR ( guias 3 basel ((transfer 3) OR (transfer 4)) case ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( aguas own des transports signal 3 ) or ( guias 3 basel ((transfer 3) OR (transfer 4)) case ))~".
• Adding a wildcard symbol may retrieve word variants: (( aguas own des transports signal 3 ) or ( guias 3 basel ((transfer 3) OR (transfer 4)) case ))*.