Perhaps you should try some spelling variations:
formulation over » formation over, formulation model, formulation where
le developpement » de developpement, sme development
developpement de » developpement des, developpement durable
3 communication » 4 communication, de communication, data communication
communication 2 » communication _, communication a, communication 3
over does » cover does, der does, over de
does 3 » does _, does a, does e
2 le » 2 les, 2 la, 2 de

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

• Adding a wildcard symbol may retrieve word variants: technologies _ formulation over does 3 communication 2 le developpement de l'afrique.*.