Perhaps you should try some spelling variations:
2.3 communications » 2.3 communication, 4.3 communication, 1.3 communication
deux developpement » deux developpements, de developpement, du developpement
integration asia » integration abis, integration a, integration als
developpement de » developpement des, developpement durable
und integration » grid integration, und interpretation
technology und » technology fund, technology used, technology use
asia travel » air travel, asia trade, africa travel
travel 2.3 » travel 2.2, travel 3.4, travel 3.7
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: technology und integration asia travel 2.3 communications _ deux developpement de afrique.*.