Perhaps you should try some spelling variations:
model development » local development, social development, global development
development scale » development stage, development small, development scaling
relation cost » regulation cost, relations post, relation 21st
technology 3 » technology _, technology 1, technology 4
costs model » cost model, cost models, costs money
scale birth » sale birth
3 relation » 3 relations, _ relation, 5 relation
cost aware » qos aware, code aware, cost share

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

• Adding a wildcard symbol may retrieve word variants: technology 3 relation cost aware _ communication costs model development scale birth.*.