Perhaps you should try some spelling variations:
"global environmental performance 2019." » "global environment performance 2019.", "global environmental performance _.", "global environmental performance a."
"legal environment policy frames." » "legal environmental policy frames.", "legal environmental policies frames.", "legal environmental politics frames.", "global environment policy frames.", "legal environment policy framing.", "legal environment policy from.", "legal environment policy france."

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: (("global environmental performance 2019.") OR ("legal environment policy frames."))~.
• Removing quotes may allow a broader search: (( global environmental performance 2019. ) or ( legal environment policy frames. ))~.
• Adding a wildcard symbol may retrieve word variants: (("global environmental performance 2019.") or ("legal environment policy frames."))*.