Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technologien aids » technologien als, technologien ad, technologien des
de communications » de communication, do communications, mce communications
aids information » chandos information, series information
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
developing 4 » developing _, developing a, developing e
costs 2.2 » costs 4.2, costs 2.3, cost 2.2
4.2 der » 2.2 der, 3.2 der
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 aids information 4.2 der de communications costs 2.2 developing 4 areas.*.