Perhaps you should try some spelling variations:
de developpement » sme development
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
de afrique » de l'afrique, en afrique, l afrique
das mass » does mass, das max
das main » its main, das max, das mit
a de » a die, a der, a des

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 ((das mass) OR (das main)) communication a de developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologie de variation des ((das mass) OR (das main)) communication a de developpement de afrique.*.