Perhaps you should try some spelling variations:
crisis communication » risk communication, mass communication
de developpement » sme development
variation among » starvation among, formation among, variation von
der variation » de variation, does variation, die variation
typology der » typologie der, typologien der, typologie des
users crisis » museum crisis, cars crisis, isis crisis
among users » among ers, among peers, among masters
des afrique » en afrique, de l'afrique
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: typology der variation among users crisis communication a de developpement des afrique.*.