Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
developpement du » developpement de, developpement des, developpement et
information age » information storage, information access, information about
du afrique » en afrique, l afrique, de l'afrique
age de » page de, stage de, image de
de de » e de, de ce, de se
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: "technologies _ information age de de communication ((a et) OR (a set)) developpement du afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies _ information age de de communication ((a et) OR (a set)) developpement du afrique.*.