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
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
per data » power data, poor data, user data

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation _ per data communications rc et developpement de l'afrique.*.