Perhaps you should try some spelling variations:
technological chain » technological change, technological choice, technological gains
3.3.2 communication » 3.4.2 communication, 3.2.3.2 communication, 13.3.9 communication
integration rate » integration greater, integration states, integration roles
au developpement » du developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
costs au » costs a, costs amy, costs _
a 3.3.2 » 1 3.3.2, a 3.1.2, a 3.2.2
rate a » rate _, rate 4, rate cap

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 a 3.3.2 communication costs au developpement l afrique.*.