Perhaps you should try some spelling variations:
"supply chain integration schemes." » "supply chain integration schengen.", "supply chain integration regimes.", "supply chain integration some."
"Supply farm irrigation schemes." » "Supply farm irrigation scheme.", "Supply farm irrigation systems.", "Supply scale irrigation schemes.", "Supply canal irrigation schemes."
supply farm » supply from, support farm

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 integration schemes.") or ("Supply farm irrigation schemes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply chain integration schemes.") OR ("Supply farm irrigation schemes."))*.
• Removing quotes may allow a broader search: (( supply chain integration schemes. ) or ( Supply farm irrigation schemes. ))*.