Perhaps you should try some spelling variations:
models development » model development, module development, model developments
communication cost » communication costs, communication costa, communications costs
1.1 communication » 4.1 communication, 1.3 communication, 1.4 communication
development south » development social, development sector, development saber
inflation rates » inflation rate
technology a » technology 1, technology 3, technology 4
rates spaces » places spaces, papers spaces, spaces spaces
south africa » north africa
a inflation » _ inflation, 2 inflation, 6 inflation
cost models » cost model, logit models
spaces 1.1 » spaces 2.1

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

• Adding a wildcard symbol may retrieve word variants: technology a inflation rates spaces 1.1 communication cost models development south africa.*.