Perhaps you should try some spelling variations:
der developpement » de developpement, des developpements, leur developpement
formulation where » formulation over, formulation des, calculation where
developpement de » developpement des, developpement durable
technologies 2 » technologies _, technologies 4
2 formulation » _ formulation, 3 formulation, la formulation
de afrique » de l'afrique, en afrique, l afrique
where do » where _
a der » _ der, 2 der, 3 der

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 formulation where do _ communication a der developpement de afrique.*.