Perhaps you should try some spelling variations:
developpements de » developpement de, developpement des, developpement du
20 communication » 10 communication, 2 communication, 2011 communication
information 2.2 » information 1.2, information 2.7, information 2.2.2
technologies 2 » technologies _, technologies 4
de afrique » de l'afrique, en afrique, l afrique
der 20 » der 270, der 24, der 25
a net » a new, _ net, a neo
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 2 information 2.2 der 20 communication ((a et) OR (a net)) developpements de afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 2 information 2.2 der 20 communication ((a et) OR (a net)) developpements de afrique.*.