Perhaps you should try some spelling variations:
communication efforts » communication networks, communications networks, communication network
mass communication » risk communication, _ communication, mobile communication
information gaps » information gap, information flows, information needs
technologies de » technologies new, technologies _, technologies a
de information » do information, debt information, does information
a development » _ development, clean development, asian development
efforts a » efforts _, effort _, exports a
de mass » does mass, ice mass

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

• Adding a wildcard symbol may retrieve word variants: technologies de information gaps de mass communication efforts a development _ afrique.*.