Perhaps you should try some spelling variations:
technologies value » technologies volume, technologies varies, technologies case
value calculations » value calculation, hale calculation, rate calculation
calculations phase » calculations charge, calculations based, calculations chapter
10 communication » 1 communication, de communication, 3 communication
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
a du » a d, a de, a u

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

• Adding a wildcard symbol may retrieve word variants: technologies value calculations phase _ 10 communication a du developpement en afrique.*.