Perhaps you should try some spelling variations:
proceedings l'integration » processus d'integration
ecology proceedings » oncology proceedings, economy proceedings, technology proceedings
developpement du » developpement de, developpement des, developpement et
l'integration e » l'integration de, l'integration _, l'integration des
4 communication » 3 communication, 5.4 communication, de communication
4 developpement » de developpement, le developpement, et developpement
du afrique » en afrique, l afrique, de l'afrique
e trade » 1 trade, 4 trade, 2 trade
trade 4 » trade _, trade a
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: ecology proceedings l'integration e trade 4 communication costs 4 developpement du afrique.*.