Perhaps you should try some spelling variations:
communication system » communication systems, telecommunication system, communication series
des transformation » des transformations, der transformation, de transformation
risi communication » risk communication, crisis communication, risk communications
technologien des » technologien fur, technologien und, technologies 2
de developpement » sme development
des africa » does africa, yes africa, de africa
system de » system der, system des, system die
de risi » de risk, de risco

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

• Adding a wildcard symbol may retrieve word variants: technologien des transformation _ de risi communication system de developpement des africa.*.