Perhaps you should try some spelling variations:
communication system » communication systems, telecommunication system, communication series
information frage » information age, information fake, information storage
development level » development local, development center, development recent
technologies de » technologies _, technologies 4, technologies 2
de information » die information, de informacion, e information
der risk » under risk, der risiko, der ring

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

• Adding a wildcard symbol may retrieve word variants: technologies de information frage der risk communication system a development level afrique.*.