Perhaps you should try some spelling variations:
information costs » information contents, information centers, information content
technologien fur » technologien des, technologien und, technologies 2
fur information » zur information, fair information, your information
a developing » a development
developing 2 » developing _, developing a, developing e
costs a » costs _, costs 4
2 areal » 2 real, _ areal, 2 areas
1 2.1 » _ 2.1, a 2.1, i 2.1
b 2.1 » b 2.2

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 fur information costs ((1 2.1) OR (b 2.1)) communication costs a developing 2 areal.~".
• Adding a wildcard symbol may retrieve word variants: technologien fur information costs ((1 2.1) OR (b 2.1)) communication costs a developing 2 areal.*.