Perhaps you should try some spelling variations:
12.4 developpement » 2.4 development, 1.4 development, 11.4 development
4.6 communication » 4.1 communication, 7.6 communication, 11.6 communication
developpement de » developpement des, developpement durable
from insulation » from isolation, from incubation, from inflation
prices 4.6 » prices 4.2, prices 4.9, prices 6.6
costs 12.4 » costs 11.4, costs 12.3, costs 2.4
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: technology from insulation _ prices 4.6 communication costs 12.4 developpement de afrique.*.