Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
older communications » border communications, modern communications, aided communications
rate transformation » state transformation, erste transformation, ratio transformation
transformation 1 » transformation _, transformation a, transformation 3
technology rate » technology state, technology role, technology related
developing iv » developing av, developing ict, developing cil
4 developing » 3 developing
how older » grow older, do older, how oer
iv africa » v africa, 1 africa, em africa
costs 4 » costs _, costs a, costs 4.2
1 how » _ how, 2 how, 3 how

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

• Adding a wildcard symbol may retrieve word variants: technology rate transformation 1 how older communications costs 4 developing iv africa.*.