Perhaps you should try some spelling variations:
technology trade » technology trends, technology transfer, technology transfers
developpement de » developpement des, developpement durable
integration can » integration case, integration canada, integration 3
1 communication » 10 communication, 3 communication, 4 communication
4 developpement » de developpement, le developpement, et developpement
can practice » care practice, lean practice, ces practice
practice 1 » practice _, practice a
de afrique » de l'afrique, en afrique, l afrique
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology trade integration can practice 1 communication costs 4 developpement de afrique.*.