Perhaps you should try some spelling variations:
oral communication » personal communication
communication 12 » communication 1, communication 2, communication 10
developments des » development desd, developments web, developments codas
variation using » variations during, variation und, variation among
et developments » et developpements, new developments, key developments
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
des afrique » en afrique, de l'afrique
using does » using deep, being does, using aes
does oral » does formal, does oil
12 et » 12 e, 13 et

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation using does oral communication 12 et developments des afrique.*.