Perhaps you should try some spelling variations:
"supply functional integration theories." » "supply functional interaction theories.", "supply functional interactions theories.", "supply function interaction theories.", "supply functional integration theorems.", "supply functional integrationstheorie 2.", "supply functional integration series.", "supply function integration theories.", "supply functions integration theories.", "support functional integration theories."
"supply national integration theory." » "supply regional integration theory.", "supply national innovation theory.", "supply national integrity theory.", "supply national integration through.", "supply national information theory.", "support national integration theory.", "supply international integration theory."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply functional integration theories.") or ("supply national integration theory."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply functional integration theories.") OR ("supply national integration theory."))*.
• Removing quotes may allow a broader search: (( supply functional integration theories. ) or ( supply national integration theory. ))*.