Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
information what » information war, information when, information wants
mine development » sme development, trade development, business development
ids information » aids information, dis information, mis information
technology ids » technology isst, technology ict, technology ii
development li » development lid, development lie, development lin
costs mine » costs money, costs timing
li afrique » l afrique, en afrique
what case » what came, what causes, what caused
case 6.2 » case 6.12, case f6.2, case 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology ids information what case 6.2 communication costs mine development li afrique.*.