Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
des variation » does variation, de variation, der variation
variation des » variation _, variation 6, variation series
des afrique » en afrique, de l'afrique
e crisis » de crisis, eu crisis, 1 crisis
des e » des _, des 3
a der » _ der, 2 der, 3 der
a de » a die, a des, _ de
typologie » typologies, typology

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "typologie des variation des e crisis communication ((a de) OR (a der)) developpement des afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie des variation des e crisis communication ((a de) OR (a der)) developpement des afrique.*.