Perhaps you should try some spelling variations:
du developpement » de developpement, le developpement, et developpement
developpement de » developpement des, developpement durable
innovation case » innovation based, innovation chapter, innovation center
technologies 4 » technologies _
4 innovation » 2 innovation, 3 innovation, der innovation
de afrique » de l'afrique, en afrique, l afrique
3.1 et » 3.1 el, 3.1 en, 3.1 ex
3.1 eu » 2.1 eu, 3.1 el, 3.2.1 eu
a du » a d, a de, a u

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies 4 innovation case ((3.1 et) OR (3.1 eu)) communication a du developpement de afrique.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies 4 innovation case ((3.1 et) OR (3.1 eu)) communication a du developpement de afrique.*".