Perhaps you should try some spelling variations:
"supply data integration schemes." » "supply data integration schengen.", "supply data irrigation schemes.", "supply data integration regimes.", "supply data integrity schemes."
"supply change irrigation system." » "supply change irrigation systems.", "supply change irrigation water.", "supply change irrigation scheme.", "supply change mitigation system.", "supply canal irrigation system.", "supply large irrigation system.", "supply charges irrigation system.", "supply channels irrigation system.", "supply chain's irrigation system."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply change irrigation system.") OR ("supply data integration schemes."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply change irrigation system.\") OR (\"supply data integration schemes.\"))*".
• Removing quotes may allow a broader search: (( supply change irrigation system. ) OR ( supply data integration schemes. ))*.