Perhaps you should try some spelling variations:
"auc largest decrease" » "auc largest decreases" (Expand Search), "auc larger decrease" (Expand Search), "auc marked decrease" (Expand Search)
"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)
"ct values decrease" » "ct values increased" (Expand Search), "_ values decrease" (Expand Search), "i values decrease" (Expand Search)

Try widening your search to All Fields.

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

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