Perhaps you should try some spelling variations:
deux developpement » deux developpements, de developpement, du developpement
3.2 communication » 3 communication, 2.3 communication, de communication
integration 21st » integration 21.4, integration 2.1.1, integration 2.1.3
developpement en » developpement et, developpement des, developpement de
2 integration » 3 integration, der integration, data integration
technology 2 » technology _, technology 1, technology 3
21st trade » east trade, 21 trade, best trade
trade 3.2 » trade 2.2, trade 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 21st trade 3.2 communication costs deux developpement en afrique.*.