Perhaps you should try some spelling variations:
transformation can » transformation case, transformation hans, transformation a
oral communication » personal communication
technologien die » technologie die, technologien des, technologien im
3 developing » 3 development
social oral » social social, social order
can social » von social, japan social, urban social
costs 3 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technologien die transformation can social oral communication costs 3 developing _ areas.*.