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
technologies rate » technologies create, technologies ret, technologies case
transformation 3 » transformation _, transformation a, transformation 1
4 developing » 3 developing
developing v » developing av, developing _, developing a
how older » grow older, do older, how oer
v africa » 1 africa, em africa
costs 4 » costs _, costs a, costs 4.2
3 how » _ how, 2 how

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

• Adding a wildcard symbol may retrieve word variants: technologies rate transformation 3 how older communications costs 4 developing v africa.*.