Perhaps you should try some spelling variations:
"supply schemes integration efforts." » "supply comes integration efforts.", "supply schemes international efforts.", "supply systems integration efforts.", "supply schemes conservation efforts.", "supply scheme integration efforts.", "supply schedules integration efforts."
"supply syria irrigation scheme." » "supply syria irrigation systems.", "supply africa irrigation scheme.", "supply drip irrigation scheme.", "supply surge irrigation scheme.", "supply social irrigation scheme.", "supply sierra irrigation scheme."

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

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