Perhaps you should try some spelling variations:
2 informationsquelle » als informationsquelle, die informationsquellen, und informationsquellen
informationsquelle a » informationsquelle 1, informationsquellen b, informationsquelle der
oral communication » personal communication
technologies 2 » technologies _, technologies 4
3 development » 2 development
neo oral » new oral, who oral
3 access » 2 access
costs 3 » costs _, costs 4, costs a
a neo » a new, _ neo

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 informationsquelle a neo oral communication costs 3 development 3 access.*.