Perhaps you should try some spelling variations:
cell communications » cell communication, health communications, rural communications
technologies based » technologies used, technology based, technologies a
based formulation » basic formulation, case formulation, based simulation
des developpement » des developpements, de developpement, le developpement
communications a » communications _, communications law, communications media
formulation de » formulation des, formulacion de, formulation du
des afrique » en afrique, de l'afrique
2.5 cell » 2.5 well, 2.2 cell, 3.5 cell
de 2.5 » mode 2.5
a des » a der, a das

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 2.5 cell communications a des developpement des afrique.*.