Perhaps you should try some spelling variations:
formulation where » formulation over, formulation des, calculation where
developpement en » developpement et, developpement des, developpement de
3 developpement » de developpement, le developpement, et developpement
technologies 2 » technologies _, technologies 4
2 formulation » _ formulation, 3 formulation, la formulation
go mobile » so mobile, togo mobile, non mobile
where go » where do, where gods, where you

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 go mobile communication _ 3 developpement en afrique.*.