Perhaps you should try some spelling variations:
data communication » data communications
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
des variation » does variation, de variation, der variation
variation das » variation des, variation data, variations des
dem data » dpm data, em data, them data
das dem » das der, das den, des dem

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 OR typologies) des variation das dem data communication _ de developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: (typologie OR typologies) des variation das dem data communication _ de developpement en afrique.*.