Perhaps you should try some spelling variations:
business communities » business community, business communication, business opportunities
au developpement » du developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
des variation » does variation, de variation, der variation
communities a » communities _
typology des » typologie des, typologie der, typology _
de afrique » de l'afrique, en afrique, l afrique
3 das » 1 das, 2 das
a au » a auf, a bau, a aus

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

• If you are trying to use Boolean operators, they must be ALL CAPS: typology des variation ((_ das) OR (3 das)) business communities a au developpement de afrique.~.
• Adding a wildcard symbol may retrieve word variants: typology des variation ((_ das) or (3 das)) business communities a au developpement de afrique.*.