Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
simulation system » simulation based, simulation setup
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
technology costs » technology cost, technology course, technology case
costs simulation » cross simulation, post simulation, crisis simulation
developpement de » developpement des, developpement durable
communication 2 » communication _, communication a, communication 3
system space » systems space, system since, system state
de afrique » de l'afrique, en afrique, l afrique
space 2.2 » space 2.1, space 3.2, space 3.3
2 leur » a leur

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

• Adding a wildcard symbol may retrieve word variants: technology costs simulation system space 2.2 communication 2 leur developpement de afrique.*.