Perhaps you should try some spelling variations:
model communication » modern communication, moral communication, modeling communication
technologien den » technologien des, technologies de, technologie de
network credit » network media, network creation
6.4 developing » 5.4 developing, 3.3 developing, 2.2 developing
den transport » de transport, sea transport, ion transport
credit model » credit models, credit modern, credit money
developing 4 » developing _, developing a, developing e
costs 6.4 » costs 4.4, costs 4.2, costs 2.3
4 areas » 1 areas, 2 areas, 4 areal

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

• Adding a wildcard symbol may retrieve word variants: technologien den transport network credit model communication costs 6.4 developing 4 areas.*.