Perhaps you should try some spelling variations:
developpement durable » developpement de
leur developpement » le developpement, deux developpements, de developpement
typologies 13.3.1 » typologies 16.4.1, typologies 3.2.1, typologies 11.5.3
13.3.1 variation » 13.3.2 variation, 13.3.2 variations, 10.3.2 variation
3 communication » 4 communication, de communication, data communication
variation des » variation _, variation 6, variation series
des den » es den, des dem, des der
den 3 » den 23, den 31, den 13

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

• Adding a wildcard symbol may retrieve word variants: typologies 13.3.1 variation des den 3 communication a leur developpement durable afrique.*.