Perhaps you should try some spelling variations:
models development » model development, module development, model developments
communication cost » communication costs, communication costa, communications costs
de communication » mobile communication, online communication
development case » development china
relations cost » relations post, relations cross, relations case
technology 3 » technology _, technology 1, technology 4
3 relations » et relations, des relations
cost shares » cost share, cost sharing
cost models » cost model, logit models
case birth » rate birth, sale birth
shares de » shares made, shares her, shares _

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

• Adding a wildcard symbol may retrieve word variants: technology 3 relations cost shares de communication cost models development case birth.*.