Perhaps you should try some spelling variations:
"supply coal federation reform." » "supply coal generation reforms.", "supply coal education reform.", "supply coal preparation reform.", "supply coal generation reform.", "supply road federation reform.", "supply world federation reform.", "supply cost federation reform.", "supply chai federation reform.", "supply cold federation reform."
"supply aid conservation efforts." » "supply land conservation efforts.", "supply bird conservation efforts.", "supply wild conservation efforts.", "supply asia conservation efforts.", "supply a conservation efforts.", "supply ann conservation efforts."

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: (("supply coal federation reform.") OR ("supply aid conservation efforts."))~.
• Removing quotes may allow a broader search: (( supply coal federation reform. ) or ( supply aid conservation efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply coal federation reform.") or ("supply aid conservation efforts."))*.