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

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

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