Perhaps you should try some spelling variations:
personalen communication » personal communication, personal communications, personal communicator
variation series » education series, action series, edition series
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
typologien der » typologie der, typologie des, apologien der
der personalen » der personen, der regionalen
der variation » de variation, does variation, die variation
series der » serien der, series de, series d

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

• Adding a wildcard symbol may retrieve word variants: typologien der variation series der personalen communication _ de developpement en afrique.*.