Perhaps you should try some spelling variations:
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
evaluation usage » evaluation stage, evaluation age, evaluation use
developpement en » developpement et, developpement des, developpement de
technology 1 » technology _
1 evaluation » 2 evaluation, 4.1 evaluation, 2.3 evaluation
usage case » age case, image case, message case
case 2.2 » cases 2.2, case 4.2, case 2.3

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

• Adding a wildcard symbol may retrieve word variants: technology 1 evaluation usage case 2.2 communication costs _ developpement en afrique.*.