Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
data developments » data development, rate developments, later developments
de communication » mobile communication, online communication
regulation 6.3 » regulation 3, regulation 3.4, regulation _
technology de » technology does, technology dlt, technology 1
de regulation » trade regulation, use regulations, data regulation
6.3 crisis » 8.3 crisis, 6.3.2 crisis, 13.3 crisis
crisis de » crisis del, crisis due, crisis debt
cost data » test data

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

• Adding a wildcard symbol may retrieve word variants: technology de regulation 6.3 crisis de communication cost data developments _ aortic.*.