Perhaps you should try some spelling variations:
"supply border international social." » "supply borders international social.", "supply berner internationale social.", "supply other international social.", "supply border international society.", "supply border international sourcing.", "supply border international seminar.", "supply order international social.", "supply under international social."
"supply school integration theories." » "supply school integration theorems.", "supply school integrationstheorie 2.", "supply school integration theory.", "supply school reintegration theories.", "supply school integrating theories.", "supply school interactions theories.", "supplies school integration theories.", "support school integration theories.", "supply shock integration theories."

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("supply border international social.") or ("supply school integration theories."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply border international social.") OR ("supply school integration theories.")).
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