Perhaps you should try some spelling variations:
technologies based » technology based, technologies a, technologies new
mass communication » risk communication, _ communication, mobile communication
communication cost » communication costs, communications costs, communication mode
based information » based innovation, land information, care information
information needs » information flows, information networks
power development » water development, career development, hydropower development
cost power » cost per, coal power
needs a » needs _, need a
a mass » _ mass, air 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 based information needs a mass communication cost power development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies based information needs a mass communication cost power development _ afrique.*.