Perhaps you should try some spelling variations:
"support firms integrationstheorie 2." » "support der integrationstheorie 2.", "support eine integrationstheorie 2.", "support firms integrationstheorie fur.", "support firms integration theories.", "support firms interpretationstheorie 2.", "support farm integrationstheorie 2.", "supporting firms integrationstheorie 2.", "support farmers integrationstheorie 2."
"support agri integration south." » "support agri integration study.", "support agri integration some.", "support agri integration social.", "support grid integration south.", "support der integration south.", "support iii integration south.", "support aging integration south.", "support a integration south."

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

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