Perhaps you should try some spelling variations:
"Routledge studies in environmental pollution." » "Routledge studies in environmental protection.", "Routledge studies in environmental conditions.", "Routledge studies in environmental regulation."
"routledge studies in environmental policies." » "routledge studies in environmental policy.", "routledge studies in environmental protection."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("Routledge studies in environmental pollution.") or ("routledge studies in environmental policies."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("Routledge studies in environmental pollution.") OR ("routledge studies in environmental policies.")).
• Removing quotes may allow a broader search: (( Routledge studies in environmental pollution. ) or ( routledge studies in environmental policies. )).
• Adding a wildcard symbol may retrieve word variants: (("Routledge studies in environmental pollution.") or ("routledge studies in environmental policies."))*.