Perhaps you should try some spelling variations:
2.7 communication » 2.3 communication, 3.2 communication, 2 communication
technology south » technology study, technology set, technology state
south insulation » sound insulation, ground insulation, south integration
insulation mayer » insulation layer, insulation case, insulation e2
developpement l » developpement il, developpement la, developpement de
mayer franz » kaiser franz
franz 2.7 » franz v.m
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology south insulation mayer franz 2.7 communication costs _ developpement l afrique.*.