Perhaps you should try some spelling variations:
"supply chain integration efforts." » "supply chain international efforts.", "supply chain conservation efforts."
"Supply mass immigration reform." » "Supply mass migration reform.", "Supply _ immigration reform."
supply mass » supply case, supply main, supply many

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("Supply mass immigration reform.") or ("supply chain integration efforts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("Supply mass immigration reform.") OR ("supply chain integration efforts.")).
• Removing quotes may allow a broader search: (( Supply mass immigration reform. ) or ( supply chain integration efforts. )).
• Adding a wildcard symbol may retrieve word variants: (("Supply mass immigration reform.") or ("supply chain integration efforts."))*.