Perhaps you should try some spelling variations:
oral communication » personal communication
communication 2.1 » communication 22.1, communications 2.1, communication 2.4
el developpement » et developpement, en developpement, et developpements
typologien does » typologie des, typologien der, typologie der
variation being » variation bei, variation using, variation among
does variation » de variation, der variation, die variation
des afrique » en afrique, de l'afrique
being does » lending does, reading does
does oral » does formal, does oil
2.1 el » 2.1 eu, 1.1 el, 3.1 el

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

• Adding a wildcard symbol may retrieve word variants: typologien does variation being does oral communication 2.1 el developpement des afrique.*.