Perhaps you should try some spelling variations:
data communication » data communications
case formulation » basic formulation, chain formulation, space formulation
formulation over » formation over, formulation model, formulation where
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
technology case » technology based, technology can, technology change
over eo » over ep, over eu, over evs

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

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