Perhaps you should try some spelling variations:
"support grid international efforts." » "support grid international airports.", "support grid international energy.", "support grid international airport.", "support 3rd international efforts.", "support third international efforts.", "support build international efforts.", "support agri international efforts.", "support grant international efforts.", "support group international efforts."
"support aging irrigation scheme." » "support aging irrigation systems.", "support saving irrigation scheme.", "support ranking irrigation scheme.", "support saline irrigation scheme.", "support making irrigation scheme.", "support using irrigation scheme.", "support going irrigation scheme."

Try widening your search to All Fields.

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

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