Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
change information » chandos information, trade information
5.3 communications » 2.3 communication, 4.3 communication, 1.3 communication
information can » information case, information 1, information 1.2
development li » development lid, development lie, development lin
li afrique » l afrique, en afrique
can case » can cause, can cash, can care
case 5.3 » case 2.3, case 5.2, case 3.3
costs a » costs _, costs 4
technological » technologies

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

• Adding a wildcard symbol may retrieve word variants: technological change information can case 5.3 communications costs a development li afrique.*.