Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
mass communication » risk communication, _ communication, mobile communication
information about » information flows, information flow
technologies new » technologies _, technologies a
development case » development bank, development a, development aid
new information » _ information, energy information, chief information
about de » about _
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 new information about de mass communication network _ development case afrique.*.