Perhaps you should try some spelling variations:
information constraint » information constraints, informational constraints, information content
communications costs » communication costs, communications _
cell communications » cell communication, health communications, rural communications
developing rural » developing real, development rural, developing halal
technologien 2 » technologies 2, technologien _, technologien 1
4 developing » 3 developing
rural africa » rural area
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: technologien 2 information constraint _ cell communications costs 4 developing rural africa.*.