Perhaps you should try some spelling variations:
improved communication » improving communication, project communication
developpement durable » developpement de
der developpement » de developpement, des developpements, leur developpement
technologie und » technologies 2.1
communication 3 » communication _, communication a
innovation 4 » innovation _, innovation a, innovation 1
do improved » does improved, _ improved, 3 improved
3 der » _ der, 2 der
4 do » _ do, 1 do, i do

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

• Adding a wildcard symbol may retrieve word variants: technologie und innovation 4 do improved communication 3 der developpement durable afrique.*.