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 en » developpement en, development menu, development eco
costs based » cost based, costs case, hots based
based 4.1 » based 4.3, used 4.1

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 based 4.1 communication _ a development en afrique.*.