Perhaps you should try some spelling variations:
"supply european integration theories." » "supply european integration theorems.", "supply european integrationstheorie 2.", "supply european integration theory.", "supply europe integration theories.", "survey european integration theories."
"supply school integration server." » "supply school reintegration server.", "supply school integrating server.", "supply school interactions server.", "supply school integration series.", "supply school integration services.", "supply school integration over.", "supplies school integration server.", "support school integration server.", "supply shock integration server."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply european integration theories.") or ("supply school integration server."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply european integration theories.") OR ("supply school integration server.")).
• Removing quotes may allow a broader search: (( supply european integration theories. ) or ( supply school integration server. )).
• Adding a wildcard symbol may retrieve word variants: (("supply european integration theories.") or ("supply school integration server."))*.