Perhaps you should try some spelling variations:
2 communications » 2 communication, 3 communications, 4 communications
developpement et » developpement des, developpement de, development east
information age » information storage, information access, information about
et afrique » en afrique, l afrique
age de » page de, stage de, image de
a set » _ set
de 2 » dem 2, des 2, der 2
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: "technologies _ information age de 2 communications ((a et) OR (a set)) developpement et afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies _ information age de 2 communications ((a et) OR (a set)) developpement et afrique.*.