Perhaps you should try some spelling variations:
"supply chains conservation efforts." » "supply charge conservation efforts.", "supply skins conservation efforts.", "supply whales conservation efforts.", "supply chain conservation efforts."
"supply scale conservation efforts." » "supply scalar conservation efforts.", "supply secure conservation efforts.", "supply whales conservation efforts.", "supply case conservation efforts.", "supply scheme conservation efforts.", "supply social conservation efforts."

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

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