Perhaps you should try some spelling variations:
personal communication » interpersonal communication
transformative power » transformative role, transformative potential, transformative _
a transformative » _ transformative
technologien a » technologien am, technologien ad, technologien _
model personal » der personal, model regional
4 developing » 3 developing
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 a transformative power model personal communication costs 4 developing _ areas.*.