Perhaps you should try some spelling variations:
deux developpement » deux developpements, de developpement, du developpement
integration 2.1.3 » integration 2.1.1, integration 2.3.3, integration 5.1.3
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
developpement en » developpement et, developpement des, developpement de
2 integration » 3 integration, der integration, data integration
technology 2 » technology _, technology 1, technology 3
2.1.3 trade » 2.4.3 trade, 2.9.3 trades, 2.1 trade
trade 2.2 » trade 3.2, trade 4.1

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

• Adding a wildcard symbol may retrieve word variants: technology 2 integration 2.1.3 trade 2.2 communication costs deux developpement en afrique.*.