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 b » information 2, information 1, information bank
4 developing » 3 developing
c personal » a personal, 1 personal, 4 personal
areas area » areas arenas, areas aida, areas africa
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 b c personal communication costs 4 developing areas area.*.