Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
aided communications » wired communications, speed communications, guinea communications
clear development » clean development, clean developoment, car development
technology 2 » technology _, technology 1, technology 3
crisis aided » crisis avoided, crisis aged, crisis after
2 relation » 5 relation, 4 relation, 6 relation
relation a » relation _, relational _, relation zur
a crisis » 19 crisis

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

• Adding a wildcard symbol may retrieve word variants: technology 2 relation a crisis aided communications costs clear development _ artic.*.