Perhaps you should try some spelling variations:
oral communication » personal communication
de developpement » sme development
developpement de » developpement des, developpement durable
technologies de » technologies _, technologies 4, technologies 2
formation after » information after, formation chapter, formation acteurs
de afrique » de l'afrique, en afrique, l afrique
after one » after money, after age, after bse
one oral » one moral, one rural, one oil
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 de formation after one oral communication a de developpement de afrique.*.