Perhaps you should try some spelling variations:
et communicatione » et communication, get communication, debt communication
developpement de » developpement des, developpement durable
innovation case » innovation based, innovation chapter, innovation center
technologies 2 » technologies _, technologies 4
de afrique » de l'afrique, en afrique, l afrique
case 3.1 » case 4.1, case 3.2, case 1
3.1 et » 3.1 el, 3.1 eu, 3.1 en
a ou » a u, a su, a zu
a o » a co

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: technologies 2 innovation case 3.1 et communicatione ((a ou) OR (a o)) developpement de afrique.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies 2 innovation case 3.1 et communicatione ((a ou) OR (a o)) developpement de afrique.*".