Perhaps you should try some spelling variations:
data communication » data communications
de developpement » sme development
developpement de » developpement des, developpement durable
typologien de » typologien der, typologie des, typologie der
variation des » variation _, variation 6, variation series
de variation » der variation, die variation, does variation
doubles data » double dot, tables data
des doubles » des double, des troubles, des douanes

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

• Adding a wildcard symbol may retrieve word variants: typologien de variation des doubles data communication _ de developpement de l'afrique.*.