Perhaps you should try some spelling variations:
data communication » data communications
based formulation » basic formulation, case formulation, based simulation
formulation where » formulation over, formulation des, calculation where
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
where eo » where do, where you, where few

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

• Adding a wildcard symbol may retrieve word variants: technology based formulation where eo data communication _ de developpement en afrique.*.