Perhaps you should try some spelling variations:
oral communication » personal communication
communication 2.1 » communication 22.1, communications 2.1, communication 2.4
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
variation being » variation bei, variation using, variation among
typologien der » typologie der, typologie des, apologien der
der variation » de variation, does variation, die variation
being does » lending does, reading does
does oral » does formal, does oil
2.1 du » 2.1 due, 2.1 de, 2.1 do

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

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