Perhaps you should try some spelling variations:
model communications » modern communications, border communications, aided communications
communications costs » communication costs, communications _
information costs » information contents, information centers, information content
technologien 1 » technologies 1, technologien _, technologien 4
4 developing » 3 developing
costs new » cost new, costs net, costs how
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 1 information costs new model communications costs 4 developing _ access.*.