Perhaps you should try some spelling variations:
personal communications » personal communication, interpersonal communications, internal communications
communications costs » communication costs, communications _
developing karstic » developing realistic, developing analytic, developing domestic
information based » information case, information bank, transformation based
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
karstic areas » karst areas, basic areas
die personal » die personale, de personal, die persona
4 developing » 3 developing
based die » basel die, based deep, based dm
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien als information based die personal communications costs 4 developing karstic areas.*.