Perhaps you should try some spelling variations:
communications series » communication series, communications services, communication services
du developpement » de developpement, le developpement, et developpement
des variation » does variation, de variation, der variation
typology des » typologie des, typologie der, typology _
variation a » variation _, variation 6, variation 5
des afrique » en afrique, de l'afrique
costs data » cost data
series du » series d, series de, series luc
a costs » a cost, 3 costs, 4 costs

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

• Adding a wildcard symbol may retrieve word variants: typology des variation a costs data communications series du developpement des afrique.*.