Perhaps you should try some spelling variations:
developpement l » developpement il, developpement la, developpement de
apologien does » apologie des, apologien der
does variation » de variation, der variation, die variation
does business » des business, smes business, das business
l afrique » en afrique
a set » _ set
a et » a net, a bet, a jet

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: "apologien does variation _ does business community ((a et) OR (a set)) developpement l afrique.~".
• Adding a wildcard symbol may retrieve word variants: apologien does variation _ does business community ((a et) OR (a set)) developpement l afrique.*.