Perhaps you should try some spelling variations:
technology relative » technology relations, technology related, technology regulation
4.2 communication » 4.2 communications, 3.2 communication, 4.1 communication
relative notion » relative position, relativen position
a developpement » au developpement, de developpement, le developpement
notion cases » action cases, national cases, action case
des afrique » en afrique, de l'afrique
cases case » causes case, case case, crises case
case 4.2 » case 4.1, case 2
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology relative notion cases case 4.2 communication costs a developpement des afrique.*.