Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information age » information storage, information access, information about
technologies 4 » technologies _
4 information » 2 information, 1 information
4 developing » 3 developing
developing a » developing _
a afrique » l afrique, en afrique
der data » under data, order data, der daten
age der » lage der, auge der, tage der
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information age der data communications costs 4 developing a afrique.*.