Perhaps you should try some spelling variations:
le developpement » de developpement, sme development
developpement l » developpement il, developpement la, developpement de
des variation » does variation, de variation, der variation
typology des » typologie des, typologie der, typology _
der voice » user voice
new voice » new voices, one voice
l afrique » en afrique
a le » a les, a la, a l

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: "typology des variation _ ((der voice) OR (new voice)) communication a le developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: typology des variation _ ((der voice) OR (new voice)) communication a le developpement l afrique.*.