Perhaps you should try some spelling variations:
personal communication » interpersonal communication
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
developing areas » developing asia, developing east, developing a
information 3 » information 2
der personal » der personalen, der personen, der person
3 developing » 3 development
areas areas » areas arenas, seas areas, areas access
costs 3 » costs _, costs 4, costs a
3 der » _ der, 2 der

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information 3 der personal communication costs 3 developing areas areas.*.