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

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