Perhaps you should try some spelling variations:
innovation based » innovation case
de communication » mobile communication, online communication
au developpement » du developpement, de developpement, le developpement
communication 3 » communication _, communication a
developpement l » developpement il, developpement la, developpement de
based 4.1 » based 4.3, used 4.1
l afrique » en afrique
4.1 de » 4.1 die, 4.1 der, 4.1 den
3 au » 3 auf, 3 a, 3 zu

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

• Adding a wildcard symbol may retrieve word variants: technologies _ innovation based 4.1 de communication 3 au developpement l afrique.*.