Perhaps you should try some spelling variations:
mass communication » risk communication, _ communication, mobile communication
information needs » information flows, information networks
risk development » rise developments, drive development, city development
technologies de » technologies new, technologies _, technologies a
de information » do information, debt information, does information
systems risk » systemic risk, systemic risks, systems case
needs a » needs _, need a
a mass » _ mass, air 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 needs a mass communication systems risk development _ afrique.*.