Perhaps you should try some spelling variations:
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
innovation case » innovation based, innovation chapter, innovation center
communication 3 » communication _, communication a
1 iot » 13 iot, _ iot, 1 ist
4 iot » _ iot
3 le » 3 les, 3 la, 1 le

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 _ innovation case ((1 iot) OR (4 iot)) communication 3 le developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies _ innovation case ((1 iot) OR (4 iot)) communication 3 le developpement en afrique.*.