Perhaps you should try some spelling variations:
south communications » mouth communications, month communication, truth communication
communications cost » communications costs, communications cross, communication costs
models developments » model developments, models development, model development
technology shock » technology shocks, technology social, technology study
shock relation » shot relation, shock alienation, shock prevention
relation type » relation types, selection type, relation de
prime south » rice south, profile south
cost models » cost model, logit models

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

• Adding a wildcard symbol may retrieve word variants: technology shock relation type prime south communications cost models developments _ north.*.