Perhaps you should try some spelling variations:
persona communication » personal communication, personal communications, personal communicator
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
development 21 » development 2.1, development 1, development 2
information 3 » information 2
der persona » der personal, der person, de persona
costs a » costs _, costs 4
21 area » 2.1 area, 1 area, 26 area
3 der » _ der, 2 der

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologien aids information 3 der persona communication costs a development 21 area.*.