Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
child development » world development
4 transformation » 1 transformation, die transformation, der transformation
transformation 3 » transformation _, transformation a, transformation 1
technologies 4 » technologies _
africa never » africa near, africa need, africa niger
costs child » costs china
em data » nm data, them data, aim data
3 em » 3 dem, 3 evm, 3 el

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 transformation 3 em data communications costs child development africa never.*.