Perhaps you should try some spelling variations:
technologies based » technologies used, technology based, technologies a
based formulation » basic formulation, case formulation, based simulation
le developpement » de developpement, sme development
formulation die » formulation de, formulacion de, formulation des
a communication » la communication, data communication, data communications
developpement l » developpement il, developpement la, developpement de
die using » line using, time using, done using
l afrique » en afrique
costs le » costs _, costs 4, costs a
using a » using _

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

• Adding a wildcard symbol may retrieve word variants: technologies based formulation die using a communication costs le developpement l afrique.*.