Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
technology asset » technology assess, technology set, technology iset
mine development » sme development, trade development, business development
asset formation » asset information
development lie » development life, development li, development lid
formation hard » formation sand, formation phase, formation age
lie afrique » l afrique
costs mine » costs money, costs timing
cash 6.2 » case 6.2, cash 3.2, cash 4.1

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

• Adding a wildcard symbol may retrieve word variants: technology asset formation hard cash 6.2 communication costs mine development lie afrique.*.