Perhaps you should try some spelling variations:
"support some interregional series." » "support some international series.", "support some l'international series.", "support some interregional disparities.", "support _ interregional series.", "support 3.4 interregional series.", "support come interregional series.", "support scheme interregional series.", "support income interregional series."
"support fare integration efforts." » "support fare international efforts.", "support fare conservation efforts.", "support trade integration efforts.", "support die integration efforts.", "support farm integration efforts.", "support farmers integration efforts.", "support future integration efforts."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("support some interregional series.") or ("support fare integration efforts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support some interregional series.") OR ("support fare integration efforts."))*.
• Removing quotes may allow a broader search: (( support some interregional series. ) or ( support fare integration efforts. ))*.