Perhaps you should try some spelling variations:
deux developpement » deux developpements, de developpement, du developpement
integration 2.1.1 » integration 2.3.1, integration 3.1.1, integration 1.1.1
developpement en » developpement et, developpement des, developpement de
4 communication » 3 communication, 5.4 communication, de communication
4 integration » 3 integration, 2 integration, 4.1 integration
technology 4 » technology _, technology 1, technology 3
2.1.1 trade » 1.1.1 trade, 2.11 trade, 2.5.1.1 trade
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: technology 4 integration 2.1.1 trade 4 communication costs deux developpement en afrique.*.