Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
csr communication » de communication, 3 communication, 4 communication
developpement l » developpement il, developpement la, developpement de
typologies 3.2 » typologies 4.2, typologies 3.2.1, typologies 2.3
3.2 variations » 9.3.2 variations, _ variations, 2 variation
l afrique » en afrique
der csr » does csr

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

• Adding a wildcard symbol may retrieve word variants: typologies 3.2 variations _ der csr communication a leur developpement l afrique.*.