Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
communication medium » communication mediums, communication media, communications media
das developpement » des developpements, de developpement, du developpement
variation bei » variation des, variation der, variation _
des afrique » en afrique, de l'afrique
der crisis » der krisis, de crisis, under crisis
medium das » medium des, medium fast, medium der

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

• Adding a wildcard symbol may retrieve word variants: typologies _ variation bei der crisis communication medium das developpement des afrique.*.