Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
true communication » truth communication, time communication, stroke communication
models development » model development, module development, model developments
technology shock » technology shocks, technology social, technology study
development case » development china
shock relations » work relations, shot relation, shock simulations
relations 3 » relations _, relations a
cost models » cost model, logit models
prime true » crime true
case car » case case, case c
3 prime » 1 prime, _ prime, a prime

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

• Adding a wildcard symbol may retrieve word variants: technology shock relations 3 prime true communication cost models development case car.*.