Perhaps you should try some spelling variations:
communications en » communication en, communications ana, communications can
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
der cooperation » der kooperation, de cooperation, peer cooperation
apologien der » typologien der, apologie des, ideologien der
among social » aging social, kong social, framing social
social data » social death, social strata, spatial data
en de » et de

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

• Adding a wildcard symbol may retrieve word variants: apologien der cooperation among social data communications en de developpement en afrique.*.