Perhaps you should try some spelling variations:
"supply side integrating policies." » "supply side international policies.", "supply side integrating countries.", "supply side immigration policies.", "supply shadow integrating policies.", "supply china integrating policies.", "supply water integrating policies."
"supply syria irrigation schemes." » "supply syria irrigation scheme.", "supply syria irrigation systems.", "supply africa irrigation schemes.", "supply drip irrigation schemes.", "supply surface irrigation schemes.", "supply social 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 syria irrigation schemes.") or ("supply side integrating policies."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply syria irrigation schemes.") OR ("supply side integrating policies."))*.
• Removing quotes may allow a broader search: (( supply syria irrigation schemes. ) or ( supply side integrating policies. ))*.