Perhaps you should try some spelling variations:
communication paper » communication power, communication pattern, communication partner
pour l'integration » pour l'interaction, que l'integration, douleur l'integration
d1 developpement » de developpement, du developpement, le developpement
developpement en » developpement et, developpement des, developpement de
4 communication » 3 communication, 5.4 communication, de communication
economic pour » economic tour, economic power, economic powers
paper d1 » paper 1, paper d, paper 3.1
trade 4 » trade _, trade a

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

• Adding a wildcard symbol may retrieve word variants: economic pour l'integration _ trade 4 communication paper d1 developpement en afrique.*.