Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
national housing » national saving, national human, national testing
le developpement » de developpement, sme development
developpement du » developpement de, developpement des, developpement et
from national » from natural
prices 6.2 » prices 3.2, prices 4.2, prices 5.2
du afrique » en afrique, l afrique, de l'afrique
costs le » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology from national housing prices 6.2 communication costs le developpement du afrique.*.