Perhaps you should try some spelling variations:
"c largest decrease" » "c marked decrease" (Expand Search), "_ largest decrease" (Expand Search), "c large decrease" (Expand Search)
"c larger decrease" » "c marked decrease" (Expand Search), "_ larger decrease" (Expand Search), "c large decrease" (Expand Search), "_ large decrease" (Expand Search)
"ct cases increased" » "ct levels increased" (Expand Search), "ct cycles increases" (Expand Search), "c2 cases increased" (Expand Search), "ktr cases increased" (Expand Search), "chd cases increased" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("c largest decrease") OR ("c larger decrease"))) OR ("ct cases increased"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"c largest decrease\") OR (\"c larger decrease\"))) OR (\"ct cases increased\"))*".
• Removing quotes may allow a broader search: (((( c largest decrease ) OR ( c larger decrease ))) OR ( ct cases increased ))*.