Perhaps you should try some spelling variations:
"supply shock integration theories." » "supply shock integration theorems.", "supply shock integrationstheorie 2.", "supply shock integration theory.", "supply book integration theories.", "supply look integration theories.", "supply work integration theories.", "supply shocks integration theories."
"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."

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

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