Perhaps you should try some spelling variations:
5.2 communication » 3.2 communication, 6.2 communication, 2.2 communication
information when » information what, information war, information wants
mine development » sme development, trade development, business development
get information » gets information, debt information, ct information
development eco » development second, development east, development menu
technology get » technology gap, technology gaps, technology 21st
when domain » open domain, event domain, other domain
eco afrique » en afrique
domain 5.2 » domains 5.2, domain 2.2, domain 3.2
costs mine » costs money, costs timing

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

• Adding a wildcard symbol may retrieve word variants: technology get information when domain 5.2 communication costs mine development eco afrique.*.