Perhaps you should try some spelling variations:
technologies ret » technologies _, technologies 4, technologies 2
de communication » mobile communication, online communication
de developpement » sme development
developpement de » developpement des, developpement durable
ret formulation » et formulation, re formulation, from formulation
de afrique » de l'afrique, en afrique, 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 ret formulation _ voies de communication a de developpement de afrique.*.