Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien des » technologien fur, technologien und, technologies 2
information case » information based, information can, information costs
de communication » mobile communication, online communication
des information » des informations, does information, dis information
2.2 development » 3.2 development, 2.3 development, 4.2 development
development 4 » development 1
case der » case des, case under, phase der
cost 2.2 » costs 2.2, cost 2.4, cost 3.2
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 des information case der de communication cost 2.2 development 4 areas.*.