Perhaps you should try some spelling variations:
"supply chain integrationstheorie 2." » "supply eine integrationstheorie 2.", "supply der integrationstheorie 2.", "supply chain integrationstheorie fur.", "supply chain integration theories.", "supply chain interpretationstheorie 2."
"supply costs interaction series." » "supply costs interactions series.", "supply costs interaction studies.", "supply costs interaction terms.", "supply cases interaction series.", "supply host interaction series.", "supply tests interaction 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 costs interaction series.") or ("supply chain integrationstheorie 2."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply costs interaction series.") OR ("supply chain integrationstheorie 2."))*.
• Removing quotes may allow a broader search: (( supply costs interaction series. ) or ( supply chain integrationstheorie 2. ))*.