Perhaps you should try some spelling variations:
model communications » modern communications, border communications, aided communications
communications costs » communication costs, communications _
transformation 2 » transformation _, transformation a, transformation 1
4.1 developing » 3.1 developing, 4 developing, 3.3 developing
developing 1 » developing _, developing a, developing e
costs 4.1 » costs 4.2, costs 4.4, costs 4.3
2 models » 2 model
1 areas » 1 area, 2 areas, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologien _ transformation 2 models model communications costs 4.1 developing 1 areas.*.