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
et developpements » et developpement, des developpements, en developpement
developpements en » developpement en, developpement et, developpements de
communication 2 » communication _, communication a, communication 3
where does » where do
does data » does cat
2 et » 2 set, 12 et, 2 ets

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 does data communication 2 et developpements en afrique.*.