Perhaps you should try some spelling variations:
"Connecting the aggregate wealth series" » "Connecting the aggregate health series", "Connecting the aggregate growth series", "Connecting the aggregate data series", "Connecting the aggregate health servies", "Connecting the aggregate earth series"
"Connecting the aggregate debt series" » "Connecting the aggregate demand series", "Connecting the aggregate budget series", "Connecting the aggregate debt services", "Connecting the aggregate debt surges", "Connecting the aggregate debt service"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("Connecting the aggregate wealth series") OR ("Connecting the aggregate debt series"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"Connecting the aggregate wealth series\") OR (\"Connecting the aggregate debt series\"))".
• Removing quotes may allow a broader search: (( Connecting the aggregate wealth series ) OR ( Connecting the aggregate debt series )).
• Adding a wildcard symbol may retrieve word variants: (("Connecting the aggregate wealth series") OR ("Connecting the aggregate debt series"))*.