Perhaps you should try some spelling variations:
"supply der integrationstheorie fur." » "supply eine integrationstheorie fur.", "supply der generationstheorie fur.", "supply der migrationstheorien fur.", "supply der integrationstheorie 2.", "supply der integrationstheorie willy.", "supply der integration theories.", "supply order integrationstheorie fur.", "supply under integrationstheorie fur.", "supply siders integrationstheorie fur."
"survey european integration series." » "survey european integration services.", "survey european interaction series.", "survey european integration server.", "surveys european integration series.", "surveys europe integration series.", "security european 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 der integrationstheorie fur.") or ("survey european integration series."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply der integrationstheorie fur.") OR ("survey european integration series."))*.
• Removing quotes may allow a broader search: (( supply der integrationstheorie fur. ) or ( survey european integration series. ))*.