Perhaps you should try some spelling variations:
"supply costs integration theories." » "supply costs integration theorems.", "supply costs integrationstheorie 2.", "supply costs integration theory.", "supply comes integration theories.", "supply post integration theories.", "supply focus integration theories."
"supply fare integration schemes." » "supply fare integration schengen.", "supply fare irrigation schemes.", "supply fare integration regimes.", "supply trade integration schemes.", "supply die integration schemes.", "supply farm integration schemes.", "supply case integration schemes.", "supply figure integration schemes."

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 costs integration theories.") or ("supply fare integration schemes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply costs integration theories.") OR ("supply fare integration schemes.")).
• Removing quotes may allow a broader search: (( supply costs integration theories. ) or ( supply fare integration schemes. )).
• Adding a wildcard symbol may retrieve word variants: (("supply costs integration theories.") or ("supply fare integration schemes."))*.