Perhaps you should try some spelling variations:
formalen communication » informal communication, complex communication, force communication
communication india » communication media, communications media
developpement l » developpement il, developpement la, developpement de
4.4 variation » 6.4 variation, 1.4 variation, 4.1 variation
variation von » variationen von, variation _, variation 6
den formalen » des formalen, der formalen, der formale
ecology 4.4 » ecology 4.1, ecology 4.2, ecology 2.3
l afrique » en afrique
von den » von der

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

• Adding a wildcard symbol may retrieve word variants: ecology 4.4 variation von den formalen communication india _ developpement l afrique.*.