Perhaps you should try some spelling variations:
source development » resource development, resources development, commerce development
technologies from » technology from, technologies co, technologies art
information needs » information networks
from information » from informal, 1 information
development en » developpement en, development menu, development eco
needs per » needs men
per data » power data, poor data, user data

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies from information needs per data communications _ source development en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies from information needs per data communications _ source development en afrique.*.