Perhaps you should try some spelling variations:
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
developing cross » development cross, developing areas, development across
3 information » 1 information
information a » information age, information about
cross african » across african, across africa, class african
technology 3 » technology _, technology 1, technology 4
debattre 3.1 » debatte 3.3, debate 3.1, debatte 7.1
4 developing » 3 developing
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 3 information a debattre 3.1 communication costs 4 developing cross african.*.