Perhaps you should try some spelling variations:
personal communications » personal communication, interpersonal communications, internal communications
communications costs » communication costs, communications _
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
developing asia » development asia, developing a
der personal » der personalen, der personen, der person
4 developing » 3 developing
asia rural » basic rural
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 _ der personal communications costs 4 developing asia rural.*.