Perhaps you should try some spelling variations:
3.4.1 communication » 3.4.2 communication, 3.4.4 communication, 9.4.1 communication
innovation create » innovation created, innovation creative, innovation rate
technology chain » technology can, technology china, technology changing
chain innovation » chain integration, open innovation, green innovation
developpement l » developpement il, developpement la, developpement de
create cape » created case, create save, create change
cape 3.4.1 » case 3.4.1, scape 3.5.1, tapes 3.4.1
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology chain innovation create cape 3.4.1 communication costs _ developpement l afrique.*.