Perhaps you should try some spelling variations:
"supply curve integration theories." » "supply curve integration theory.", "supply curve integration through.", "supply curve integration efforts.", "supply care integration theories.", "supply fare integration theories.", "supply use integration theories."
"supply case integration series." » "supply case integrating services.", "supply case integration schemes.", "supply case integration social.", "supply care integration series.", "supply fare integration series.", "supply can integration series.", "supply cost integration series.", "supply chain integration series.", "supply costs 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 curve integration theories.") or ("supply case integration series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply curve integration theories.") OR ("supply case integration series.")).
• Removing quotes may allow a broader search: (( supply curve integration theories. ) or ( supply case integration series. )).
• Adding a wildcard symbol may retrieve word variants: (("supply curve integration theories.") or ("supply case integration series."))*.