Perhaps you should try some spelling variations:
7.6 communication » 7.6.2 communication, 11.6 communication, 2.3 communication
insulation lower » insulation layer, insulation blocks, insulation case
developpement la » developpement de, developpement et, developpement du
technology coil » technology cost, technology code, technology choice
coil insulation » cable insulation, noise insulation, common insulation
4 developpement » de developpement, le developpement, et developpement
prices 7.6 » prices 4.6, prices 6.6, prices 7.5
la afrique » l afrique, la fabrique, en afrique
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology coil insulation lower prices 7.6 communication costs 4 developpement la afrique.*.