Perhaps you should try some spelling variations:
technological chain » technological change, technological choice, technological gains
chain innovation » chain integration, open innovation, green innovation
innovation state » innovation space, innovation rate, innovation strategy
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
2 communication » 3 communication, 4 communication, 1 communication
state case » states case, states cases, state based
costs le » costs _, costs 4, costs a
case 2 » case 1

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

• Adding a wildcard symbol may retrieve word variants: technological chain innovation state case 2 communication costs le developpement en afrique.*.