Perhaps you should try some spelling variations:
"support social integration theories." » "support social integration theorems.", "support social integrationstheorie 2.", "support social integration theory.", "support global integration theories.", "support financial integration theories.", "support regional integration theories.", "supporting social integration theories.", "supply social integration theories."
"support eu integration some." » "support eu integration south.", "support eu integration soziale.", "support eu integration social.", "support deep integration some.", "support die integration some.", "support data integration some.", "support _ integration some.", "support a integration some.", "support 4 integration some."

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

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