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."
"supply cost integrating services." » "supply cost integration services.", "supply cost integrated services.", "supply cost regulating services.", "supply count integrating services.", "supply congo integrating services.", "supply cc6 integrating services.", "supply costs integrating services."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("support social integration theories.") OR ("supply cost integrating services."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"support social integration theories.\") OR (\"supply cost integrating services.\"))*".
• Removing quotes may allow a broader search: (( support social integration theories. ) OR ( supply cost integrating services. ))*.