Perhaps you should try some spelling variations:
des developpement » des developpements, de developpement, le developpement
variation series » education series, action series, edition series
developpement en » developpement et, developpement des, developpement de
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
series does » services does, series de, series models
does mobile » das mobile
a des » a der, a das

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

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