Perhaps you should try some spelling variations:
communication effort » communication efforts, communication network, communication sector
technologies change » technological change, technology change, technological changes
change information » trade information, chief information
information need » information needs, information based, information age
development a » development _, development bank, development banks
de mobile » does mobile, _ mobile, a mobile

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

• Adding a wildcard symbol may retrieve word variants: technologies change information need de mobile communication effort _ development a afrique.*.