Perhaps you should try some spelling variations:
communications series » communication series, communications services, communication services
leur developpement » le developpement, deux developpements, de developpement
des l'afrique » de l'afrique, de l'amerique
6 variation » 6 variations, _ variation, 2 variation
variation 3 » variation _, variation 6, variation 5
series leur » series four, series luc
typology 6 » typology _, typology 4.1
costs data » cost data
3 costs » 3 cost, 4 costs

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

• Adding a wildcard symbol may retrieve word variants: typology 6 variation 3 costs data communications series leur developpement des l'afrique.*.