Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
variation service » sanitation service, irrigation service, variation series
de developpement » sme development
communication 3 » communication _, communication a
service models » service levels
des variation » does variation, de variation, der variation
models verbal » models several, models versus, models global
des afrique » en afrique, de l'afrique
3 de » 3 die, 3 der, 3 des
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 service models verbal communication 3 de developpement des afrique.*.