Perhaps you should try some spelling variations:
oral communication » personal communication
information cases » information case, information classes, information costs
technologien der » technologien des, technologie der, technologien fur
der information » insider information, sector information, labor information
development 3.1 » development 1
3.1 access » 1.1 access, 3.2 access, 3.6 access
cases new » case new, cases des, cases el
new oral » new moral, knew moral, new rural
costs 2 » costs 20, costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologien der information cases new oral communication costs 2 development 3.1 access.*.