Perhaps you should try some spelling variations:
le developpement » de developpement, sme development
variation among » starvation among, formation among, variation von
typologies der » typologie der, typologien der, typologie des
der variation » de variation, does variation, die variation
des afrique » en afrique, de l'afrique
among ers » among peers, among users, among east
ers data » rs data, users data, cecs data

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

• Adding a wildcard symbol may retrieve word variants: typologies der variation among ers data communications _ le developpement des afrique.*.