Perhaps you should try some spelling variations:
innovation 1.2.3 » innovation 2.3, innovation 1.3, innovation 1.1.1
de communication » mobile communication, online communication
developpement de » developpement des, developpement durable
technologies 2 » technologies _, technologies 4
1.2.3 does » 12.3 does, 19.3.3 does, 1.2.3 die
de afrique » de l'afrique, en afrique, l afrique
does de » does debt
a du » a d, a u, _ du
a de » a die, a der, a des

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 innovation 1.2.3 does de communication ((a du) OR (a de)) developpement de afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 2 innovation 1.2.3 does de communication ((a du) OR (a de)) developpement de afrique.*.