Perhaps you should try some spelling variations:
integration euler's » integration efforts, integration eines, integration europas
technological 2e » technological _, technological meta, technological 3.5
developpement en » developpement et, developpement des, developpement de
4 communication » 3 communication, 5.4 communication, de communication
4 developpement » de developpement, le developpement, et developpement
2e integration » de integration, re integration, die integration
euler's state » rules state
state 4 » state _, state a
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: technological 2e integration euler's state 4 communication costs 4 developpement en afrique.*.