Perhaps you should try some spelling variations:
"supply chain international efforts." » "supply chain international airports.", "supply chain international energy.", "supply chain international airport.", "supply china international efforts.", "supply can international efforts.", "supply sharing international efforts."
"supply basin irrigation systems." » "supply drip irrigation systems.", "supply canal irrigation systems.", "supply farm irrigation systems.", "supply case irrigation systems.", "supply basin irrigation system."

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply basin irrigation systems.\") OR (\"supply chain international efforts.\"))~".
• Removing quotes may allow a broader search: (( supply basin irrigation systems. ) OR ( supply chain international efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply basin irrigation systems.") OR ("supply chain international efforts."))*.