Perhaps you should try some spelling variations:
oral communication » personal communication
information based » information case, information bank, transformation based
technologien dis » technologien des, technologien als, technologien im
dis information » mis information, aids information, des informations
based direct » used direct, based district, based fire
4 developing » 3 developing
developing e » developing _, developing a, developing east
costs 4 » costs _, costs a, costs 4.2
e areas » 1 areas, 2 areas, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information based direct oral communication costs 4 developing e areas.*.