Perhaps you should try some spelling variations:
touch communications » touch communication, mouth communications, south communications
communications costs » communication costs, communications _
models development » model development, module development, model developments
development case » development china
technology gaps » technology gap
gaps relations » mass relations, class relations, rates relations
relations do » relations du, relations das, relations der
prices touch » prices north
costs models » cost models, cost model, potts models
case data » cases data, base data, use data

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

• Adding a wildcard symbol may retrieve word variants: technology gaps relations do prices touch communications costs models development case data.*.