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