Perhaps you should try some spelling variations:
personal communication » interpersonal communication
transformation case » transformation based, transformation a, transformation als
zur transformation » rural transformation, die transformation, energy transformation
technologien zur » technologien fur, technologien des, technologien und
sums personal » mtms personal, ss personal, names personal
4 developing » 3 developing
case sums » parse sums, case sub
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 zur transformation case sums personal communication costs 4 developing _ areas.*.