Perhaps you should try some spelling variations:
references conclusions » references conclusion
conclusions 1.6 » conclusions 12.6, conclusions 17.6, conclusions 19.6
4 communication » 3 communication, 5.4 communication, de communication
l developpement » le developpement, de developpement, et developpement
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
1.6 die » 3.6 die, 2.6 die, 4.6 die
media l » media _, media 1, media 3
die 4 » die _, die e
technologies » technology

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

• Adding a wildcard symbol may retrieve word variants: technologies references conclusions 1.6 die 4 communication media l developpement l afrique.*.