Perhaps you should try some spelling variations:
"supply trade integrationstheorie 2." » "supply der integrationstheorie 2.", "supply eine integrationstheorie 2.", "supply traditionelle integrationstheorie 2.", "supply trade integrationstheorie fur.", "supply trade integration theories.", "supply trade interpretationstheorie 2.", "supply case integrationstheorie 2."
"supply american integration regimes." » "supply numerical integration regimes.", "supply urban integration regimes.", "supply american immigration regimes.", "supply american international regimes.", "supply american integration regional.", "supply mexican integration regimes.", "supply africa integration regimes.", "ugly american integration regimes."

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 integrationstheorie 2.") or ("supply american integration regimes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply trade integrationstheorie 2.") OR ("supply american integration regimes.")).
• Removing quotes may allow a broader search: (( supply trade integrationstheorie 2. ) or ( supply american integration regimes. )).
• Adding a wildcard symbol may retrieve word variants: (("supply trade integrationstheorie 2.") or ("supply american integration regimes."))*.