Perhaps you should try some spelling variations:
communications series » communication series, communications services, communication services
a developpement » au developpement, de developpement, le developpement
die variation » de variation, does variation, der variation
typology die » typology _, typology 4.1, typology 6
variation 4 » variations 4, variation _, variation 6
des afrique » en afrique, de l'afrique
cost data » test data
series a » series _, series 1, series 2

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

• Adding a wildcard symbol may retrieve word variants: typology die variation 4 cost data communications series a developpement des afrique.*.