Perhaps you should try some spelling variations:
personal communication » interpersonal communication
technologien dis » technologien des, technologien als, technologien im
developing areas » developing asia, developing east, developing a
dis information » mis information, aids information, des informations
information 2 » information 3
die personal » die personale, de personal, die persona
4 developing » 3 developing
areas areas » areas arenas, seas areas, areas access
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 dis information 2 die personal communication costs 4 developing areas areas.*.