Perhaps you should try some spelling variations:
au developpement » du developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
des variation » does variation, de variation, der variation
smes business » sme business, times business, sas business
community a » community _, community bank
a au » a auf, a bau, a aus

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 typology) des variation _ smes business community a au developpement de l'afrique.~".
• Adding a wildcard symbol may retrieve word variants: (typologie OR typology) des variation _ smes business community a au developpement de l'afrique.*.