Perhaps you should try some spelling variations:
3.4.2 communication » 3.3.2 communication, 3.4.1 communication, 3.4.4 communication
technology chain » technology can, technology china, technology changing
chain innovation » chain integration, open innovation, green innovation
innovation space » innovation impact, innovation science, innovation sources
developpement en » developpement et, developpement des, developpement de
4 developpement » de developpement, le developpement, et developpement
space have » spares have, space race, space age
have 3.4.2 » have 9.2.2
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology chain innovation space have 3.4.2 communication costs 4 developpement en afrique.*.