Perhaps you should try some spelling variations:
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
1 communication » 10 communication, 3 communication, 4 communication
technologies 2 » technologies _, technologies 4
2 calibration » _ calibration, 4 calibration, a calibration
curve et » curve set, curve _, curve a
costs au » costs a, costs amy, costs _
et 1 » et 13, pt 1, et a

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 calibration curve et 1 communication costs au developpement en afrique.*.