Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
ngo communication » togo communications, de communication, 3 communication
developpement l » developpement il, developpement la, developpement de
typologies 2.2 » typologies 2.3, typologies 2.5, typologies 3.2
2.2 variation » 12.2 variation, 2.1 variation, 2.3 variation
l afrique » en afrique
der ngo » der ngos, der neo, des ngo

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

• Adding a wildcard symbol may retrieve word variants: typologies 2.2 variation _ der ngo communication a leur developpement l afrique.*.