Perhaps you should try some spelling variations:
vote communication » voice communication, ante communication, remote communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
des variation » does variation, de variation, der variation
des der » des ddr, des dem, des des
a de » a die, a der, a des
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 ((des der) OR (des dr)) vote communication a de developpement en afrique.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "typologie des variation ((des der) OR (des dr)) vote communication a de developpement en afrique.*".