Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
le developpement » de developpement, sme development
variation over » variation der, variation notes, variation des
des variation » does variation, de variation, der variation
des afrique » en afrique, de l'afrique
das crisis » las crisis, ida's crisis, cars crisis
over das » cover das, oder das, over data
typologie » typologies, typology

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

• Adding a wildcard symbol may retrieve word variants: typologie des variation over das crisis communication _ le developpement des afrique.*.