Perhaps you should try some spelling variations:
3.2 communications » 3.2 communication, 3.1 communications, 4.2 communications
die developpement » de developpement, le developpement, du developpement
technology trade » technology trends, technology transfer, technology transfers
developpement en » developpement et, developpement des, developpement de
trade reaction » trade reduction, trade creation, trade relation
reaction based » reduction based, action based, creation based
based roles » based role, based modes, based modules
roles 3.2 » roles 13.2, rules 3.2, holes 3.2

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

• Adding a wildcard symbol may retrieve word variants: technology trade reaction based roles 3.2 communications _ die developpement en afrique.*.