Perhaps you should try some spelling variations:
den developpement » de developpement, en developpement, des developpements
communications 1 » communications 14, communications _, communications a
developpement de » developpement des, developpement durable
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
de afrique » de l'afrique, en afrique, l afrique
1 den » _ den, 1 der, 1 des
b 10 » b 1, 9 10, 7 10
_ 10 » _ 1

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 a information table ((b 10) OR (_ 10)) communications 1 den developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies a information table ((b 10) OR (_ 10)) communications 1 den developpement de afrique.*.