Perhaps you should try some spelling variations:
"supply der integrationstheorie 2." » "supply eine integrationstheorie 2.", "supply der generationstheorie 2.", "supply der migrationstheorien 2.", "supply der integrationstheorie fur.", "supply der integration theories.", "supply der interpretationstheorie 2.", "supply order integrationstheorie 2.", "supply under integrationstheorie 2.", "supply siders integrationstheorie 2."
"supply congo integrating policies." » "supply congo integration policies.", "supply congo integrated policies.", "supply congo integrating positive.", "supply change integrating policies.", "supply count integrating policies.", "supply economy integrating policies.", "supply costs integrating policies.", "supply cost integrating policies.", "supply cold integrating policies."

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

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