Perhaps you should try some spelling variations:
external communication » internal communication, internal communications, personal communication
der developpement » de developpement, des developpements, leur developpement
developpement en » developpement et, developpement des, developpement de
communication 2 » communication _, communication a, communication 3
innovation 4 » innovation _, innovation a, innovation 1
do external » do externel, does external, 4 external
2 der » _ 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: technologies _ innovation 4 do external communication 2 der developpement en afrique.*.