Perhaps you should try some spelling variations:
rural communications » oral communication, rural telecommunications, cultural communications
communications costs » communication costs, communications _
information context » information content, information contents, information centers
13.4 developing » 1.4 developing, 12.4 developing, 10.4 developing
developing a » developing _
context 2.5 » context 2.1, context 2.3, context 2.2
costs 13.4 » costs 11.4, costs 12.4, costs 23.4
2.5 rural » 6.5 rural, 2.2 rural, 8.5 rural
a africa » 1 africa, can africa, em africa

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

• Adding a wildcard symbol may retrieve word variants: technologien _ information context 2.5 rural communications costs 13.4 developing a africa.*.