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 asia » development asia, developing a
information 10 » information 1, information 11, information 14
der personal » der personalen, der personen, der person
4 developing » 3 developing
costs 4 » costs _, costs a, costs 4.2
areal. » areas., area., real.

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information 10 der personal communication costs 4 developing asia areal.*.