Perhaps you should try some spelling variations:
13.3.9 communication » 13.3.10 communication, 13.4.5 communication, 3.3.2 communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
ct information » cost information, get information, iot information
technology ct » technology cost, technology can, technology 1
information 2 » information 3
case 13.3.9 » case 1.3.4, case 12.2.9, case 12.3.2
costs de » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology ct information 2 case 13.3.9 communication costs de developpement en afrique.*.