Perhaps you should try some spelling variations:
"supply chain integration schemes." » "supply chain irrigation schemes.", "supply chain integration some.", "supply chain integration theories.", "supply trade integration schemes.", "supply data integration schemes."
"support grid integration series." » "support grid integration theories.", "support grid integrating services.", "support grid integration social.", "support trade integration series.", "support _ integration series.", "support data integration series.", "support agri integration series.", "support grant integration series.", "support group integration series."

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