Perhaps you should try some spelling variations:
communications series » communication series, communications services, communication services
developpement la » developpement de, developpement et, developpement du
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
la afrique » l afrique, la fabrique, en afrique
post data » cost data, post natal, test data

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 post data communications series _ developpement la afrique.*.