Perhaps you should try some spelling variations:
2 informationsquelle » als informationsquelle, die informationsquellen, und informationsquellen
informationsquelle 1 » informationsquellen b, informationsquelle der, informationsquellen 3.3
technologies 2 » technologies _, technologies 4
3 developing » 3 development
developing a » developing _
a mobile » _ mobile
a access » 2 access, 3 access, 4 access
costs 3 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 informationsquelle 1 a mobile communication costs 3 developing a access.*.