Perhaps you should try some spelling variations:
change information » chandos information, trade information
technology change » technological change, technological changes
information costs » information contents, information centers, information content
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
development lie » development life, development li, development lid
de development » e development, ce development, de developpement
lie afrique » l afrique
costs case » costs cash
case 4.1 » case 4.2, case 1
costs de » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology change information costs case 4.1 communication costs de development lie afrique.*.