Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
based innovation » und innovation
3.2 developing » 3.3 developing, 2.2 developing, 3 developing
innovation 4 » innovation _, innovation a, innovation 1
developing 1 » developing _, developing a, developing e
costs 3.2 » costs 4.2, cost 3.2, costs 3.5
1 area » 1 areas, 21 area, 3 area
4 und » 24 und, 14 und, _ und

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

• Adding a wildcard symbol may retrieve word variants: technology based innovation 4 und mobile communications costs 3.2 developing 1 area.*.