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
communication 1 » communication _, communication a, communication 3
development en » developpement en, development menu, development eco
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
series her » series e, series new, series de
her verbal » des verbal, der verbalen

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 her verbal communication 1 africa development en afrique.*.