Perhaps you should try some spelling variations:
data communication » data communications
des developpements » deux developpements, de developpement, et developpements
developpements de » developpement de, developpement des, developpement du
des variation » does variation, de variation, der variation
variation des » variation _, variation 6, variation series
typology des » typologie des, typologie der, typology _
costs data » cost data
des costs » gas costs, bus costs, d costs
media des » media das, media der, media modes

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

• Adding a wildcard symbol may retrieve word variants: typology des variation des costs data communication media des developpements de l'afrique.*.