Perhaps you should try some spelling variations:
2.6 communication » 2.3 communication, 2.7 communication, 2.2 communication
technology trade » technology trends, technology transfer, technology transfers
integration wie » integration sowie, integration wage, integration wege
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
l afrique » en afrique
wie nach » sie nach, wie nicht, die nacht
nach 2.6 » nach 21, nach 106
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: technology trade integration wie nach 2.6 communication costs 4 developpement l afrique.*.