Perhaps you should try some spelling variations:
11.6 communication » 1.1 communication, 1.3 communication, 1.4 communication
technology system » technology series, technology sector, technology set
system insulation » system installation, systems incubation, system simulation
developpement du » developpement de, developpement des, developpement et
4 developpement » de developpement, le developpement, et developpement
insulation gas » insulation glass, insulation case, insulation _
prices 11.6 » prices 4.6, prices 6.6, practices 11.6
du afrique » en afrique, l afrique, de l'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 system insulation gas prices 11.6 communication costs 4 developpement du afrique.*.