Perhaps you should try some spelling variations:
"auc ratio increased" » "auc rate increased" (Expand Search), "auc also increased" (Expand Search), "c ratio increased" (Expand Search), "alt ratio increased" (Expand Search), "a ratio increased" (Expand Search)
"c marked decrease" » "c marked increase" (Expand Search), "_ marked decrease" (Expand Search), "a marked decrease" (Expand Search), "_ market decrease" (Expand Search)
"n marked decrease" » "n marked increase" (Expand Search), "_ marked decrease" (Expand Search), "a marked decrease" (Expand Search), "_ market decrease" (Expand Search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("auc ratio increased") OR ((("c marked decrease") OR ("n marked decrease"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"auc ratio increased\") OR (((\"c marked decrease\") OR (\"n marked decrease\"))))".
• Removing quotes may allow a broader search: (( auc ratio increased ) OR ((( c marked decrease ) OR ( n marked decrease )))).
• Adding a wildcard symbol may retrieve word variants: (("auc ratio increased") OR ((("c marked decrease") OR ("n marked decrease"))))*.