Perhaps you should try some spelling variations:
communication 4.1 » communication 4.3, communication 7.1, communication 1
information costs » information contents, information centers, information content
de communication » mobile communication, online communication
technologies 4 » technologies _
4 information » 2 information, 1 information
development l » development li, development 1, development law
costs die » costs ii, costs iii, costs differ
l afrique » en afrique
die de » die die, die der, die den

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information costs die de communication 4.1 _ development l afrique.*.