Perhaps you should try some spelling variations:
communications series » communication series, communications services, communication services
developpement l » developpement il, developpement la, developpement de
der variation » de variation, does variation, die variation
variation 3.3 » variation 4.3, variation 4.1, variation _
typology der » typologie der, typologien der, typologie des
cost data » test data
l afrique » en afrique
3.3 cost » 3.3 post, 2.3 cost, 4.3 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 3.3 cost data communications series _ developpement l afrique.*.