Perhaps you should try some spelling variations:
informationen zur » informationen zu, informationen uber, informationen und
2 communications » 2 communication, 3 communications, 4 communications
developpement de » developpement des, developpement durable
4 informationen » _ informationen, b informationen, av informationen
technologies 4 » technologies _
de afrique » de l'afrique, en afrique, l afrique
zur co » fur co
a net » a new, _ net, a neo
co 2 » cov 2, c 2, ch 2
a et » a set, 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: "technologies 4 informationen zur co 2 communications ((a et) OR (a net)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 4 informationen zur co 2 communications ((a et) OR (a net)) developpement de afrique.*.