Perhaps you should try some spelling variations:
"supply contracts integration social." » "supply connectes integration social.", "supply content integration social.", "supply countries integration social.", "supply contracts international social."
"support tool integration theories." » "support tool integration theorems.", "support tool integrationstheorie 2.", "support tool integration theory.", "support global integration theories.", "support social integration theories.", "support 3 integration theories.", "support tools integration theories."

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

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