Perhaps you should try some spelling variations:
communications system » communication system, communication systems, commusnication systems
risi communications » risk communications, crisis communications, risk communication
des transformation » des transformations, der transformation, de transformation
technologien des » technologien fur, technologien und, technologies 2
au developpement » du developpement, de developpement, le developpement
des africa » does africa, yes africa, de africa
system au » systeme au, system a, system ac
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 communications system au developpement des africa.*.