Perhaps you should try some spelling variations:
open communication » human communication, 3 communication, 4 communication
variation series » education series, action series, edition series
de developpement » sme development
developpement du » developpement de, developpement des, developpement et
des variation » does variation, de variation, der variation
du afrique » en afrique, l afrique, de l'afrique
a de » a die, a der, a des
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 series _ open communication a de developpement du afrique.*.