Perhaps you should try some spelling variations:
technologies chapter » techniques chapter
chapter innovation » change innovation, cluster innovation, shape innovation
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
developpement en » developpement et, developpement des, developpement de
innovation ode » innovation oder, innovation code, innovation node
ode case » node case, one case, pde case
case 6.2 » case 6.12, case f6.2, case 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies chapter innovation ode case 6.2 communication costs _ developpement en afrique.*.