Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
zur transformation » rural transformation, die transformation, energy transformation
transformation a » transformation _
y communication » 3 communication, 4 communication, 1 communication
2.2 development » 3.2 development, 2.3 development, 4.2 development
technology zur » technology 4ir, technologien zur, technology _
development ai » development aid, development api, development a
a debates » _ debates, a debate, 1 debates
debates y » debates _, debate _, debate 3
ai africa » ii africa, can africa, 1 africa
cost 2.2 » costs 2.2, cost 2.4, cost 3.2

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

• Adding a wildcard symbol may retrieve word variants: technology zur transformation a debates y communication cost 2.2 development ai africa.*.