Perhaps you should try some spelling variations:
oral communication » personal communication
communication 18.3 » communication 1.3, communication 14.3, communication 3.3
does developpement » de developpement, des developpements, does development
typologie die » typologie des, typologie der, theologie die
die variation » de variation, does variation, der variation
des afrique » en afrique, de l'afrique
18.3 does » 12.3 does, 18.2 does, 13 does
des oral » des moral, des oil, des orts

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

• Adding a wildcard symbol may retrieve word variants: typologie die variation _ des oral communication 18.3 does developpement des afrique.*.