Perhaps you should try some spelling variations:
personal communications » personal communication, interpersonal communications, internal communications
communications costs » communication costs, communications _
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
development 4 » development 1
der personal » der personalen, der personen, der person
costs a » costs _, costs 4
4 areas » 1 areas, 2 areas, 4 areal

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information _ der personal communications costs a development 4 areas.*.