Perhaps you should try some spelling variations:
"supply tool integration theories." » "supply tool integration theorems.", "supply tool integrationstheorie 2.", "supply tool integration theory.", "supply global integration theories.", "supply social integration theories.", "supply 3 integration theories.", "supply school integration theories.", "support tool integration theories.", "supply donor integration theories."
"supply cost integration social." » "supply cost international social.", "supply post integration social.", "supply test integration social.", "supply about integration social.", "supply costs integration social."

Try widening your search to All Fields.

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

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