Perhaps you should try some spelling variations:
communication series » communication services, communication systems, communication skills
oral communication » personal communication
iste developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
series iste » serien liste, series list, series index
does oral » does formal, does oil

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation _ does oral communication series iste developpement en afrique.*.