Perhaps you should try some spelling variations:
developing across » developing cross, development across, developing areas
de communication » mobile communication, online communication
information can » information case, information 1, information 1.2
4 developing » 3 developing
can debate » care debate, gain debate, a debate
debate de » debates de, debate we, debatte der
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 _ information can debate de communication costs 4 developing across africa.*.