Perhaps you should try some spelling variations:
developpement de » developpement des, developpement durable
de developpement » sme development
a communication » la communication, data communication, data communications
des variation » does variation, de variation, der variation
doses a » doses _, dosek a, poses a
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 _ doses a communication a de developpement de l'afrique.*.