Perhaps you should try some spelling variations:
communication studie » communication studies, communications studies, communication study
zur transformation » rural transformation, die transformation, energy transformation
des developpement » des developpements, de developpement, le developpement
transformation a » transformation _
technologie zur » technologien zur, technologien fur, technologie der
studie des » studien des, studie der, studien der
2.5 risk » 3.5 risk
a 2.5 » a 2.1, _ 2.5, a 2.2

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

• Adding a wildcard symbol may retrieve word variants: technologie zur transformation a 2.5 risk communication studie des developpement _ african.*.