Perhaps you should try some spelling variations:
technologies based » technologies used, technology based, technologies a
data communication » data communications
based calculation » based calculations, rate calculation, based tabulation
calculation where » calculations charge, calculation source, calculations phase
le developpement » de developpement, sme development
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
where eo » where do, where you, where few

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

• Adding a wildcard symbol may retrieve word variants: technologies based calculation where eo data communication _ le developpement l afrique.*.