Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
scale development » estate development, trade development, sme development
el communication » cell communication, real communication, 3 communication
technology dlt » technology data, technology debts, technology 21st
dlt relations » des relations, et relations, dog relations
relations 3.2 » relations 3.1, relations 2, relations 2.1
3.2 crisis » 13.2 crisis, 3.1 crisis, 2.2 crisis
cost scale » cost share, cost scanner, modest scale
crisis el » crisis _, crisis a, crisis 1

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

• Adding a wildcard symbol may retrieve word variants: technology dlt relations 3.2 crisis el communication cost scale development _ artic.*.