Perhaps you should try some spelling variations:
"supply trade integrating policies." » "supply trade integration policies.", "supply trade integrated policies.", "supply trade integrating positive.", "supply true integrating policies.", "supply drama integrating policies.", "supply case integrating policies."
"supply spate irrigation schemes." » "supply spate irrigation scheme.", "supply spate irrigation systems.", "supply scale irrigation schemes.", "supply water irrigation schemes.", "supply surge irrigation schemes.", "supply system irrigation schemes.", "supply side irrigation schemes."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply trade integrating policies.") or ("supply spate irrigation schemes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply trade integrating policies.") OR ("supply spate irrigation schemes."))*.
• Removing quotes may allow a broader search: (( supply trade integrating policies. ) or ( supply spate irrigation schemes. ))*.