Perhaps you should try some spelling variations:
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
technologien der » technologien des, technologie der, technologien fur
integration work » integrating world, integration framework, integration 3
der integration » zur integration, sector integration
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
work trade » pork trade, world trade, work travel
trade 4.1 » trade 2.2, trade 3.2
l afrique » en afrique
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien der integration work trade 4.1 communication costs 4 developpement l afrique.*.