Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
developpement de » developpement des, developpement durable
variation des » variation _, variation 6, variation series
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
deas device » real device, less devices
de afrique » de l'afrique, en afrique, l afrique
des deas » des des, des degats, des delays
a des » a der, a das
a de » a die, a der, _ de

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "typologie de variation des deas device communication ((a de) OR (a des)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie de variation des deas device communication ((a de) OR (a des)) developpement de afrique.*.