Perhaps you should try some spelling variations:
11.3.1 communication » 11.4.1 communication, 13.3.10 communication, 13.3.9 communication
communication case » communications case, communication based, communication phase
d developpement » de developpement, du developpement, le developpement
developpement l » developpement il, developpement la, developpement de
prices 11.3.1 » process 11.3.1, prices 11.2.3, prices 14.3.4
technology 3 » technology _, technology 1, technology 4
3 inflation » _ inflation, 2 inflation, 6 inflation
l afrique » en afrique
case d » case 1, case 2, case 3

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

• Adding a wildcard symbol may retrieve word variants: technology 3 inflation _ prices 11.3.1 communication case d developpement l afrique.*.