Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
15.1 communications » 1.1 communication, 3.1 communications, 4.1 communication
model development » local development, social development, global development
inflation state » inflation starts, inflation rate, simulation state
technology can » technology change, technology 1, technology 2.2
can inflation » ein inflation, has inflation, von inflation
state states » states states, state status, stable states
states 15.1 » states 1.1, states 5.1, stages 15.1
costs model » cost model, cost models, costs money
1 afrique » l afrique, en afrique, 1 enrique

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

• Adding a wildcard symbol may retrieve word variants: technology can inflation state states 15.1 communications costs model development 1 afrique.*.