Perhaps you should try some spelling variations:
"auc values decrease" » "auc values increased" (Expand Search), "auc largest decrease" (Expand Search)
"ct values decrease" » "ct values increased" (Expand Search), "ct largest decrease" (Expand Search), "_ values decrease" (Expand Search), "i values decrease" (Expand Search)
"chd cases increased" » "chd levels increased" (Expand Search), "chd cycles increases" (Expand Search), "ad cases increased" (Expand Search), "chd based increased" (Expand Search), "eid cases increased" (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 values decrease") OR ((("ct values decrease") OR ("chd cases increased"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"auc values decrease\") OR (((\"ct values decrease\") OR (\"chd cases increased\"))))".
• Removing quotes may allow a broader search: (( auc values decrease ) OR ((( ct values decrease ) OR ( chd cases increased )))).
• Adding a wildcard symbol may retrieve word variants: (("auc values decrease") OR ((("ct values decrease") OR ("chd cases increased"))))*.