Perhaps you should try some spelling variations:
communication 4.1 » communication 4.3, communication 7.1, communication 1
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
el developpement » et developpement, en developpement, et developpements
developpement en » developpement et, developpement des, developpement de
innovation rate » innovation race, innovation create, innovation state
technology 1 » technology _
1 innovation » 2 innovation, 3 innovation, 4 innovation
rate space » state space, trace space, safe space
space 6.2 » spaces 6.2, space 3.2, space 2.2
4.1 el » 1.1 el, 3.1 el, 2.1 el

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

• Adding a wildcard symbol may retrieve word variants: technology 1 innovation rate space 6.2 communication 4.1 el developpement en afrique.*.