Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
dam developpement » de developpement, du developpement, au developpement
developpement l » developpement il, developpement la, developpement de
des variation » does variation, de variation, der variation
normes verbal » forma verbal
l afrique » en afrique
a dam » a das, a day, _ dam
typologie » typologies, typology

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

• Adding a wildcard symbol may retrieve word variants: typologie des variation _ normes verbal communication a dam developpement l afrique.*.