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 la » developpement de, developpement et, developpement du
insulation lss » insulation glass, insulation case, insulation _
lss process » loss process, lss processes, moss process
process 3.2 » process 2.2
la afrique » l afrique, la fabrique, en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology study insulation lss process 3.2 communication costs _ developpement la afrique.*.