Perhaps you should try some spelling variations:
technologien und » technologie und, technologien des, technologien fur
information bank » information b, information 2, information 1
und information » fund information, road information, award information
developing 4 » developing _, developing a, developing e
4 areal » 4 real, _ areal, 2 areal
dm 2.5 » dm 2.4

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 und information bank ((dm 2.5) OR (mm 2.5)) communication costs _ developing 4 areal.~".
• Adding a wildcard symbol may retrieve word variants: technologien und information bank ((dm 2.5) OR (mm 2.5)) communication costs _ developing 4 areal.*.