Perhaps you should try some spelling variations:
technologies used » technologies based, technology used, technologies _
used information » user information, use information, based information
per development » power development, spur development, oer developments
costs per » cost per
a mobile » _ mobile
flows a » flows _, flows 1, flows 2

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies used information flows a mobile communication costs per development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies used information flows a mobile communication costs per development _ afrique.*.