Perhaps you should try some spelling variations:
technologies based » technologies used, technology based, technologies a
based formulation » basic formulation, case formulation, based simulation
de communication » mobile communication, online communication
de developpement » sme development
developpement du » developpement de, developpement des, developpement et
du afrique » en afrique, l afrique, de l'afrique
voies de » does de
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: technologies based formulation _ voies de communication a de developpement du afrique.*.