Perhaps you should try some spelling variations:
online communication » mobile communication, business communication, mobile communications
informations 4.3.2 » information 4.3.2, information 4.3.3, information 2.3.2
technologien des » technologien fur, technologien und, technologies 2
des informations » aids information
4 developing » 3 developing
developing 4 » developing _, developing a, developing e
4 access » 2 access, 3 access
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien des informations 4.3.2 _ online communication costs 4 developing 4 access.*.