Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technology change » technological change, technological changes
14 communications » 10 communications, 14 communication, 4 communications
change inflation » change information, change innovation, change simulation
inflation und » inflation index, inflation _, inflation tax
developing li » developing ai, developing l2, developing cil
4 developing » 3 developing
li afrique » l afrique, en afrique
und cash » und case, und care, und carl
cash 14 » cash 4
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 change inflation und cash 14 communications costs 4 developing li afrique.*.