Perhaps you should try some spelling variations:
"supply national integration series." » "supply regional integration series.", "supply national innovation series.", "supply national integrity series.", "supply national integration theories.", "supply national integrating services.", "supply national integration schemes."
"export price integration some." » "export service integration some.", "export policy integration some.", "export trade integration some.", "export price integration volume.", "export price integration power.", "export price integration south.", "export prices integration some.", "import prices integration some."

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

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