Perhaps you should try some spelling variations:
oral communication » personal communication
et developpements » et developpement, des developpements, en developpement
developpements de » developpement de, developpement des, developpement du
does variation » de variation, der variation, die variation
typology does » typologie des, apology do's, typology how
variation der » variation des, variation bei, variation _
a et » a set, a net, a bet

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

• Adding a wildcard symbol may retrieve word variants: typology does variation der _ oral communication a et developpements de l'afrique.*.