Perhaps you should try some spelling variations:
costs interaction » cases interaction, host interaction, tests interaction
interaction fibre » interaction figure, interaction fiber, interaction aware
3.2 communication » 3 communication, 2.3 communication, de communication
technology costs » technology cost, technology course, technology case
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
optic 3.2 » optica 3.5, optics 3.1
l afrique » en afrique
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology costs interaction fibre optic 3.2 communication costs a developpement l afrique.*.