Perhaps you should try some spelling variations:
technologies based » technologies used, technology based, technologies a
based calculations » based calculation, hand calculations, baseline calculations
calculations where » calculation where, calculations charge, calculations phase
data communication » data communications
le developpement » de developpement, sme development
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
where do » where _
do data » eo data, go data, geo data

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

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