Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
africa development » african development, american development, physical development
variation series » education series, action series, edition series
development en » developpement en, development menu, development eco
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
series des » series de, series d, series e
des verbal » des verbalen, des verbs, models verbal
a africa » 1 africa, can africa, em africa

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation series des verbal communication a africa development en afrique.*.