Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
technology scale » technology state, technology social, technology shaped
scale simulation » scale circulation, scale sanitation, crop simulation
simulation state » simulation states, simulation stage, simulation system
developpement en » developpement et, developpement des, developpement de
space 6.2 » spaces 6.2, space 3.2, space 2.2

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

• Adding a wildcard symbol may retrieve word variants: technology scale simulation state space 6.2 communication _ leur developpement en afrique.*.