Perhaps you should try some spelling variations:
information needs » information networks
power development » water development, career development, hydropower development
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
needs a » needs _
mass » maps

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 needs a mass communication a power development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information needs a mass communication a power development _ afrique.*.