Perhaps you should try some spelling variations:
clean development » human development, urban development
technologies bit » technologies art, technologies box, technologies _
bit information » ct information, get information, iot information
costs clean » costs clear
a mobile » _ mobile
gap a » gap _, gas a, gap 4

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

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