Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
technologien und » technologie und, technologien des, technologien fur
un communication » 3 communication, 4 communication, 1 communication
und information » fund information, road information, award information
information und » informations und
2.5 developing » 25.5 developing, 2.2 developing, 1.5 developing
costa 2.5 » cost 2.5, costs 2.5, cost 2.4
a aes » a abs, a aus
_ aes » _ aus, _ abs, _ aws

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 und die un communication costa 2.5 developing ((a aes) OR (_ aes)).~".
• Adding a wildcard symbol may retrieve word variants: technologien und information und die un communication costa 2.5 developing ((a aes) OR (_ aes)).*.