Perhaps you should try some spelling variations:
technological chain » technological change, technological choice, technological gains
5.5.2 communication » 3.3.2 communication, 3.4.2 communication, 4.2.2 communication
integration rate » integration greater, integration states, integration roles
du developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
costs du » 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: technological chain integration rate _ 5.5.2 communication costs du developpement l afrique.*.