Perhaps you should try some spelling variations:
guiera communications » guinea communications, guiana communications, guest communications
variation series » education series, action series, edition series
et developpement » de developpement, le developpement, test development
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
des afrique » en afrique, de l'afrique
series a » series _, series 1, series 2

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation series a guiera communications _ et developpement des afrique.*.