Perhaps you should try some spelling variations:
communications series » communication series, communications services, communication services
des developpements » deux developpements, de developpement, et developpements
developpements en » developpement en, developpement et, developpements de
der variation » de variation, does variation, die variation
typology der » typologie der, typologien der, typologie des
variation 3 » variation _, variation 6, variation 5
series des » series de, series d, series e
cost data » test data
3 cost » 3 costs, 2.3 cost, 3.3 cost

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

• Adding a wildcard symbol may retrieve word variants: typology der variation 3 cost data communications series des developpements en afrique.*.