Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
communication series » communication services, communication systems, communication skills
et developpement » de developpement, le developpement, test development
developpement de » developpement des, developpement durable
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
est verbal » post verbal, des verbal
series et » series e, series new, series ein

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation _ est verbal communication series et developpement de l'afrique.*.