Perhaps you should try some spelling variations:
online communication » mobile communication, business communication, mobile communications
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
information 3 » information 2
4 developing » 3 developing
developing a » developing _
costs 4 » costs _, costs a, costs 4.2
a areal » _ areal, 2 areal, 4 areal
3 und » 13 und, 23 und, _ und

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 und online communication costs 4 developing a areal.*.