Perhaps you should try some spelling variations:
mobilen communications » mobile communications, mobile communication, mobile commusnication
communications costs » communication costs, communications _
technologien aids » technologien als, technologien ad, technologien des
aids information » chandos information, series information
information 3 » information 2
4 developing » 3 developing
bei mobilen » bei immobilen, der mobilen, bei stabilen
costs 4 » costs _, costs a, costs 4.2
3 bei » a bei, 1 bei, 2 bei

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 bei mobilen communications costs 4 developing _ area.*.