Perhaps you should try some spelling variations:
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
developpement en » developpement et, developpement des, developpement de
4 developpement » de developpement, le developpement, et developpement
technology 1 » technology _
gap process » up process, amp process, dp process
process 3.1 » process 3.2, process 2.1, process 2.2
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology 1 information gap process 3.1 communication costs 4 developpement en afrique.*.