Perhaps you should try some spelling variations:
communications rc » communications tec, communications _, communications a
et developpement » de developpement, le developpement, test development
developpement de » developpement des, developpement durable
des variation » does variation, de variation, der variation
per data » power data, poor data, user data
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 _ per data communications rc et developpement de l'afrique.*.