Perhaps you should try some spelling variations:
technology volume » technologies volume, seismology volume, technology evolution
volume evaluation » value evaluation, course evaluation, use evaluation
evaluation states » evaluation stage, evaluation rates, evaluation strategy
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
developpement la » developpement de, developpement et, developpement du
la afrique » l afrique, la fabrique, en afrique
case 6.2 » case 6.12, case f6.2, case 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology volume evaluation states case 6.2 communication costs _ developpement la afrique.*.