Perhaps you should try some spelling variations:
communication malaria » communication bulgaria, communication algeria, communication materials
case developpement » case development, de developpement, le developpement
developpement de » developpement des, developpement durable
technologies 2 » technologies _, technologies 4
informal out » informal oath, informal output, informal group
malaria case » malaria cases, malaysia case, malaria a
2 informal » _ informal, 3 informal, 8 informal
de afrique » de l'afrique, en afrique, l afrique
out more » out mode, about more, just more

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 informal out more mobile communication malaria case developpement de afrique.*.