Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
study insulation » study population, sound insulation, study regulation
developpement et » developpement des, developpement de, development east
insulation case » consultation case, insulation glass, insulation layer
4 developpement » de developpement, le developpement, et developpement
et fabrique » la fabrique
case case » base case, case based, use case
case 3.2 » case 4.2, case 3.1, case 5.2
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 study insulation case case 3.2 communication costs 4 developpement et fabrique.*.