Perhaps you should try some spelling variations:
"supply trade integration theories." » "supply trade integration theorems.", "supply trade integrationstheorie 2.", "supply trade integration theory.", "supply case integration theories."
"supply asset integration schemes." » "supply asset integration schengen.", "supply asset irrigation schemes.", "supply asset integration regimes.", "supply market integration schemes.", "supply about integration schemes.", "supply et integration schemes.", "supply assets integration schemes.", "supply aspect integration schemes.", "supply aspects 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 trade integration theories.") or ("supply asset integration schemes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply trade integration theories.") OR ("supply asset integration schemes."))*.
• Removing quotes may allow a broader search: (( supply trade integration theories. ) or ( supply asset integration schemes. ))*.