Perhaps you should try some spelling variations:
personal communication » interpersonal communication
2 transformation » 2 transformations, 1 transformation, 4 transformation
transformation a » transformation _
technologies 2 » technologies _, technologies 4
der personal » der personalen, der personen, der person
3 developing » 3 development
developing 2 » developing _, developing a, developing e
costs 3 » costs _, costs 4, costs a
2 areal » 2 real, _ areal, 2 areas
a der » _ der, 2 der, 3 der

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 transformation a der personal communication costs 3 developing 2 areal.*.