Perhaps you should try some spelling variations:
perspectives cross » perspectives across, perspectives book
case perspectives » case perspective, based perspectives, lse perspectives
cross studies » across studies, css studies, cass studies
crimes costs » crimes contre, causes costs, crimes case
crises costs » causes costs, crises cross, crises causes

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

• If you are trying to use Boolean operators, they must be ALL CAPS: commercial ((crimes costs) OR (crises costs)) case perspectives cross studies.~.
• Adding a wildcard symbol may retrieve word variants: commercial ((crimes costs) or (crises costs)) case perspectives cross studies.*.