Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
technology price » technology rich, technology voice, technology service
development lid » development led, development li, development lie
inflation und » inflation index, inflation _, inflation tax
4 development » 2 development, 4 developing
lid afrique » l afrique
und case » und care, und cash, id case
case 6.2 » case 6.12, case f6.2, case 4.2
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology price inflation und case 6.2 communication costs 4 development lid afrique.*.