Perhaps you should try some spelling variations:
technologien fair » technologien fur, technologies fail, technologien als
2.1 communication » 2.14 communication, 2.3 communication, 2.7 communication
fair information » fairs information, fur information, labor information
information case » information based, information can, information costs
a developing » a development
costs a » costs _, costs 4
2 areal » _ areal, 2 areas, 4 areal
1 2.1 » b 2.1, _ 2.1, a 2.1

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologien fair information case 1 2.1 communication costs a developing ((2 areal) OR (2 real)).~".
• Adding a wildcard symbol may retrieve word variants: technologien fair information case 1 2.1 communication costs a developing ((2 areal) OR (2 real)).*.