Perhaps you should try some spelling variations:
"supply social integration schemes." » "supply social integration schengen.", "supply social irrigation schemes.", "supply social integration regimes.", "supply global integration schemes.", "supply financial integration schemes.", "supply regional integration schemes."
"supply side integration theory." » "supply side integration through.", "supply side information theory.", "supply side innovation theory.", "supply die integration theory.", "supply de integration theory.", "supply life integration theory."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply side integration theory.") or ("supply social integration schemes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply side integration theory.") OR ("supply social integration schemes."))*.
• Removing quotes may allow a broader search: (( supply side integration theory. ) or ( supply social integration schemes. ))*.