Perhaps you should try some spelling variations:
5.3 communication » 2.3 communication, 4.3 communication, 1.3 communication
technologien zur » technologien fur, technologien des, technologien und
information case » information based, information can, information costs
zur information » fur information, your information, der information
a developing » a development
developing 2 » developing _, developing a, developing e
costs a » costs _, costs 4
2 areal » 2 real, _ areal, 2 areas
case a » case 1, case 2, case 3
a 5.3 » a 3.3, a 5.1, a 2.3

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

• Adding a wildcard symbol may retrieve word variants: technologien zur information case a 5.3 communication costs a developing 2 areal.*.