Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
ngo communication » togo communications, de communication, 3 communication
developpement la » developpement de, developpement et, developpement du
typologies 2.5 » typologies 2.3, typologies 3.2, typologies 4.2
2.5 variations » 2.5 variation, 5.5 variations, 2 variations
la afrique » l afrique, la fabrique, en afrique
dr ngo » der ngos, dr congo, dr kongo

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

• Adding a wildcard symbol may retrieve word variants: typologies 2.5 variations _ dr ngo communication a leur developpement la afrique.*.