Perhaps you should try some spelling variations:
du developpement » de developpement, le developpement, et developpement
innovation case » innovation based, innovation chapter, innovation center
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
3.1 en » 3.1 el, 3.1 eu, 3.1 ex
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 _ innovation case ((3.1 en) OR (3.1 ein)) communication a du developpement l afrique.~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies _ innovation case ((3.1 en) OR (3.1 ein)) communication a du developpement l afrique.*".