Perhaps you should try some spelling variations:
"supply how integration theories." » "supply how integration theorems.", "supply how integrationstheorie 2.", "supply how integration theory.", "supply new integration theories.", "supply how interaction theories.", "supply die integration theories."
"supply contract creation social." » "supply contract formation social.", "supply content creation social.", "supply contract duration social.", "supply contracts creation social.", "supply constraints creation social.", "supply contract recreation social.", "supply contract creating social.", "supply contract creative social."

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

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