Perhaps you should try some spelling variations:
"legal environment government system." » "legal environment development system.", "legal development government system.", "legal employment government system.", "global environment government system.", "legal environment government systems.", "legal environment governance system.", "legal environment government sector."
"legal investment insurance system." » "legal investment finance system.", "real investment insurance system.", "local investment insurance system.", "global investment insurance system."

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