Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
communication series » communication services, communication systems, communication skills
e developpement » de developpement, le developpement, et developpement
typologien der » typologie der, typologie des, apologien der
der variation » de variation, does variation, die variation
des afrique » en afrique, de l'afrique
est verbal » post verbal, des verbal
series e » series _, series 1, series 2

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

• Adding a wildcard symbol may retrieve word variants: typologien der variation _ est verbal communication series e developpement des afrique.*.