Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
communication 4.1 » communication 4.3, communication 7.1, communication 1
information psi » information pt, information point, information prior
developpement l » developpement il, developpement la, developpement de
power risk » powers risk, lower risk, power ric
psi power » psia power, i power, ii power
l afrique » en afrique
4.1 leur » 4.1 le, 4.1 les, 4.1 leid

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information psi power risk communication 4.1 leur developpement l afrique.*.