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
das dem » das der, das den, das drei
des dem » des der, des des, des deux
typologie » typologies, typology

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

• Performing a fuzzy search may retrieve terms with similar spellings: typologie des variation ((das dem) OR (des dem)) data communication _ de developpement en afrique.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "typologie des variation ((das dem) OR (des dem)) data communication _ de developpement en afrique.*".