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 does » cover does, der does, over de
does data » does cat
a de » a die, a der, a des

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 does data communication a de developpement en afrique.*.