Perhaps you should try some spelling variations:
transfers interaction » transport interaction, transfer intervention, transfer extraction
technology transfers » technology transfer
communications costs » communication costs, communications _
development rate » development create, development route, development water
rate africa » rates africa, rates aafrica, trade africa
costs 2 » costs 20, costs _, costs 4
e data » e datas, age data, cge data

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

• Adding a wildcard symbol may retrieve word variants: technology transfers interaction _ e data communications costs 2 development rate africa.*.