Perhaps you should try some spelling variations:
variation series » education series, action series, edition series
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
4 communication » 3 communication, 5.4 communication, de communication
des variation » does variation, de variation, der variation
series dem » series de, series nejm, series d
dem 4 » dem _, dem 2, dem 1
typologie » typologies, typology

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

• Adding a wildcard symbol may retrieve word variants: typologie des variation series dem 4 communication _ de developpement en afrique.*.