Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technologien des » technologien fur, technologien und, technologies 2
des informations » aids information
informations 3.2 » information 3.2, information 2.3.2, information 3.2.2
de communication » mobile communication, online communication
3.3 developing » 4 developing, 2 developing, 1 developing
cost 3.3 » cost 3.2, cost 2.3, cost 3.4
3.2 why » 1.2 why, 2.2 why, 8.2 why
why de » why do, why does, why code

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

• Adding a wildcard symbol may retrieve word variants: technologien des informations 3.2 why de communication cost 3.3 developing _ access.*.