Perhaps you should try some spelling variations:
transformation case » transformation based, transformation a, transformation als
der transformation » die transformation, zur transformation, energy transformation
oral communication » personal communication
technologien der » technologien des, technologie der, technologien fur
developing areas » developing asia, developing east, developing a
4 developing » 3 developing
areas areas » areas arenas, seas areas, areas access
case non » cause non, raise non, case new
non oral » non oil, non arab
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien der transformation case non oral communication costs 4 developing areas areas.*.