Perhaps you should try some spelling variations:
4.2 communications » 4.2 communication, 3.2 communication, 6.2 communication
trade regulations » trade regulation, trade relations
regulations based » relations based, regulations shared, regulations made
technology trade » technology trends, technology transfer, technology transfers
de developpement » sme development
developpement l » developpement il, developpement la, developpement de
based roles » based role, based modes, based modules
roles 4.2 » rules 4.2, roles 4.1, roles 3.2
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology trade regulations based roles 4.2 communications _ de developpement l afrique.*.