Perhaps you should try some spelling variations:
"eleven supplementary steroids" » "eleven supplementary services", "eleven supplementary studies", "eleven supplementary queries", "level supplementary steroids", "selected supplementary steroids", "present supplementary steroids"
"eleven supplementary series" » "level supplementary series", "selected supplementary series", "present supplementary series", "eleven supplementary services", "eleven supplementary queries", "eleven supplementary studies"

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("eleven supplementary series") OR ("eleven supplementary steroids")).
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