Perhaps you should try some spelling variations:
oral communication » personal communication
technologie from » technologies from, technology from, technologie im
from information » from informal, 1 information
information case » information based, information can, information costs
2.1 development » 3.1 development, 2.3 development, 2.2 development
costs 2.1 » costs 2.3, costs 4.1, costs 2.2
case und » cases und, hase und, kase und
und oral » und moral, und orte, und ort
3 access » 2 access

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

• Adding a wildcard symbol may retrieve word variants: technologie from information case und oral communication costs 2.1 development 3 access.*.