Perhaps you should try some spelling variations:
"supply crowd integrationstheorie 2." » "supply der integrationstheorie 2.", "supply eine integrationstheorie 2.", "supply crowd integrationstheorie fur.", "supply crowd integration theories.", "supply crowd interpretationstheorie 2.", "supply growth integrationstheorie 2.", "supply cost integrationstheorie 2.", "supply from integrationstheorie 2."
"support sector integration social." » "support sector international social.", "support vector integration social.", "support section integration social.", "export sector integration social."

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: (("support sector integration social.") OR ("supply crowd integrationstheorie 2."))~.
• Removing quotes may allow a broader search: (( support sector integration social. ) or ( supply crowd integrationstheorie 2. ))~.
• Adding a wildcard symbol may retrieve word variants: (("support sector integration social.") or ("supply crowd integrationstheorie 2."))*.