Perhaps you should try some spelling variations:
interaction fiber » interaction figure, interaction inter, interaction layer
6.3 communication » 26.3 communication, 2.3 communication, 4.3 communication
best interaction » tests interaction, host interaction, agent interaction
developpement de » developpement des, developpement durable
technology best » technology based
a developpement » au developpement, de developpement, le developpement
fiber optics » fiber optic, fibre optic
optics 6.3 » options 6.3, optics 3, optics 1.7
de afrique » de l'afrique, en afrique, l 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 best interaction fiber optics 6.3 communication costs a developpement de afrique.*.