Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
4.2 communications » 4.2 communication, 3.2 communication, 6.2 communication
insulation change » population change, innovation change, insulation case
au developpement » du developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
technology 1 » technology _
1 insulation » _ insulation, 1 inspiration, 1 innovation
process 4.2 » process 2.2, process 2.1, process 2.4
de afrique » de l'afrique, en afrique, l afrique
costs au » costs a, costs amy, costs _

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

• Adding a wildcard symbol may retrieve word variants: technology 1 insulation change process 4.2 communications costs au developpement de afrique.*.