Perhaps you should try some spelling variations:
technologien fur » technologien des, technologien und, technologies 2
information case » information based, information can, information costs
fur information » zur information, fair information, your information
a developing » a development
developing 4 » developing _, developing a, developing e
costs a » costs _, costs 4
4 areal » 4 real, _ areal, 2 areal
a 1.3 » a 3.3, a 1.1, a 2.3
_ 1.3 » _ 1.5, _ 1.4, _ 1.2

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 case ((a 1.3) OR (_ 1.3)) communication costs a developing 4 areal.~".
• Adding a wildcard symbol may retrieve word variants: technologien fur information case ((a 1.3) OR (_ 1.3)) communication costs a developing 4 areal.*.