Perhaps you should try some spelling variations:
"global environment performance contract." » "global environmental performance contract.", "global environmental performances contract.", "global investment performance contract.", "global environment performance contracts."
"legal government performance risk." » "legal environmental performance risk.", "local government performance risk.", "level government performance risk.", "liberal government performance risk.", "legal government performance 2019."

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: (("legal government performance risk.") or ("global environment performance contract."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("legal government performance risk.") OR ("global environment performance contract.")).
• Removing quotes may allow a broader search: (( legal government performance risk. ) or ( global environment performance contract. )).
• Adding a wildcard symbol may retrieve word variants: (("legal government performance risk.") or ("global environment performance contract."))*.