Perhaps you should try some spelling variations:
information century » information centers, information centre, information center
ante communication » parte communication, une communication, vote communication
technologies key » technologies any, technologies know, technologies _
communication 20 » communication 2.0, communication 2, communication 10
key information » energy information
21 developing » 2.1 developing, 2 developing, 1 developing
developing a » developing _
century 2.1 » century 3.1, century 2.2, century 1
a afrique » l afrique, en afrique
2.1 ante » 2.1 antike, 2.1 alter, 2.1 ann

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

• Adding a wildcard symbol may retrieve word variants: technologies key information century 2.1 ante communication 20 21 developing a afrique.*.