Perhaps you should try some spelling variations:
"supply eine integrationstheorie 2." » "supply der integrationstheorie 2.", "supply revidierte integrationstheorie 2.", "supply die generationstheorie 2.", "supply eine integrationstheorie fur.", "supply eine integration theories.", "supply eine interpretationstheorie 2.", "supply lines integrationstheorie 2.", "supply china integrationstheorie 2."
"supply social integration theory." » "supply global integration theory.", "supply financial integration theory.", "supply regional integration theory.", "supply social integration through.", "supply social information theory.", "supply social innovation theory."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply eine integrationstheorie 2.") or ("supply social integration theory."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply eine integrationstheorie 2.") OR ("supply social integration theory."))*.
• Removing quotes may allow a broader search: (( supply eine integrationstheorie 2. ) or ( supply social integration theory. ))*.