Perhaps you should try some spelling variations:
communication services » telecommunications services
mass communication » risk communication, _ communication, mobile communication
information gaps » information gap, information flows, information needs
technologies a » technologies _
a information » _ information, land information, award information
development a » development _, development bank, development banks
de mass » does mass, ice mass

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies a information gaps de mass communication services _ development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information gaps de mass communication services _ development a afrique.*.