Perhaps you should try some spelling variations:
sanitation solution » sanitation solutions, sanitation situation, sanitation promotion
developpement de » developpement des, developpement durable
3 communication » 4 communication, de communication, data communication
a developpement » au developpement, de developpement, le developpement
solution i » solution iv, solution _, solution 3
de afrique » de l'afrique, en afrique, l afrique
costs a » costs _, costs 4
i 3 » ii 3

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

• Adding a wildcard symbol may retrieve word variants: technologies _ sanitation solution i 3 communication costs a developpement de afrique.*.