Perhaps you should try some spelling variations:
calculations phase » calculations charge, calculations based, calculations chapter
trade development » software development
3 communication » 4 communication, de communication, data communication
technologies a » technologies _, technologies 4, technologies 2
a calculations » _ calculations, 1 calculations, 2 calculations
development de » development d, development ds, developpement de
de afrique » de l'afrique, en afrique, l afrique
phase des » phasen des, phase der
des 3 » des _

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

• Adding a wildcard symbol may retrieve word variants: technologies a calculations phase des 3 communication _ trade development de afrique.*.