Perhaps you should try some spelling variations:
"supply chain international competition." » "supply chain international cooperation.", "supply chain international competitiveness.", "supply chain international comparisons.", "supply chains international competition.", "supply main international competition.", "supply can international competition."
"supply side irrigation schemes." » "supply side irrigation scheme.", "supply side irrigation systems.", "supply saline irrigation schemes.", "supply scale irrigation schemes.", "supply under irrigation schemes."

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: (("supply chain international competition.") or ("supply side irrigation schemes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply chain international competition.") OR ("supply side irrigation schemes.")).
• Removing quotes may allow a broader search: (( supply chain international competition. ) or ( supply side irrigation schemes. )).
• Adding a wildcard symbol may retrieve word variants: (("supply chain international competition.") or ("supply side irrigation schemes."))*.