Perhaps you should try some spelling variations:
trade developpement » trade developement, trade development, de developpement
sent communication » event communication, debt communication, et communication
information speed » information sheet, information needed, information needs
developpement de » developpement des, developpement durable
communication 4 » communication _, communication a, communication 3
technologies 2 » technologies _, technologies 4
speed one » speed money, speed line, need one
one sent » one agent, one event, one belt
4 trade » 1 trade

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information speed one sent communication 4 trade developpement de l'afrique.*.