Perhaps you should try some spelling variations:
1 communications » 10 communications, 14 communications, 1 communication
developpement de » developpement des, developpement durable
information als » information age, information a, information act
de afrique » de l'afrique, en afrique, l afrique
die 1 » die 10, die _, die 4

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 als die 1 communications ((a l) OR (a la)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies _ information als die 1 communications ((a l) OR (a la)) developpement de afrique.*.