Perhaps you should try some spelling variations:
technologies based » technologies used, technology based, technologies a
based formulation » basic formulation, case formulation, based simulation
developpement de » developpement des, developpement durable
formulation fun » formulation du, formulation _, formulation 3
4 developpement » de developpement, le developpement, et developpement
fun doing » un doing, und doing, fun being
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies based formulation fun doing _ communication costs 4 developpement de l'afrique.*.