Perhaps you should try some spelling variations:
personal communication » interpersonal communication
variation series » education series, action series, edition series
developpement et » developpement des, developpement de, development east
e developpement » de developpement, le developpement, et developpement
typologies die » typologies _, typologie des, typologie der
die variation » de variation, does variation, der variation
der personal » der personalen, der personen, der person
series der » serien der, series de, series d
et afrique » en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: typologies die variation series der personal communication a e developpement et afrique.*.