Perhaps you should try some spelling variations:
11.1 communication » 1.1 communication, 11.6 communication, 11.4.1 communication
technology change » technological change, technological changes
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
care 11.1 » care 10.1, care 11.4, care 1.2.1
l afrique » en afrique
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 implications _ care 11.1 communication costs 4 developpement l afrique.*.