Perhaps you should try some spelling variations:
formalen communication » informal communication, complex communication, force communication
de developpement » sme development
developpement de » developpement des, developpement durable
variation using » variations during, variation und, variation among
apologien der » typologien der, apologie des, ideologien der
der variation » de variation, does variation, die variation
pots formalen » des formalen
using pots » using pets, using phits, using path
media de » media die, media der, media diet

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

• Adding a wildcard symbol may retrieve word variants: apologien der variation using pots formalen communication media de developpement de l'afrique.*.