Perhaps you should try some spelling variations:
oral communication » personal communication
information based » information case, information bank, transformation based
technologien 1 » technologies 1, technologien _, technologien 4
developing can » developing a, developing ai, developing av
a developing » a development
based case » based care, base case, based phase
can africa » urban africa
case oral » ashe oral
costs a » 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 1 information based case oral communication costs a developing can africa.*.