Perhaps you should try some spelling variations:
"cleaner supplementary series" » "diseases supplementary series", "cortex supplementary series", "aged supplementary series", "cleaner supplementary services", "cleaner supplementary steroids", "cleaner supplementary studies"
"cleaner supplementary queries" » "diseases supplementary queries", "cortex supplementary queries", "aged supplementary queries", "cleaner supplementary exercises", "cleaner supplementary services", "cleaner supplementary studies"

Try widening your search to All Fields.

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"cleaner supplementary series\") OR (\"cleaner supplementary queries\"))".
• Removing quotes may allow a broader search: (( cleaner supplementary series ) OR ( cleaner supplementary queries )).
• Adding a wildcard symbol may retrieve word variants: (("cleaner supplementary series") OR ("cleaner supplementary queries"))*.