Perhaps you should try some spelling variations:
oral communication » personal communication
5 transformation » 15 transformation, 5 transformations, 1 transformation
transformation a » transformation _
technologien 5 » technologien _, technologien 1, technologien 4
4 developing » 3 developing
developing a » developing _
10.4 oral » 14.4 oral, 10.4 local, 10.4 coal
costs 4 » costs _, costs a, costs 4.2
a areas » 1 areas, 2 areas, 4 areas
a 10.4 » 2 10.4, 3 10.4, 4 10.4

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

• Adding a wildcard symbol may retrieve word variants: technologien 5 transformation a 10.4 oral communication costs 4 developing a areas.*.