Perhaps you should try some spelling variations:
"ct largest decrease" » "ct largest decreases" (Expand Search), "ct marked decrease" (Expand Search), "_ largest decrease" (Expand Search)
"c cases increased" » "c rate increased" (Expand Search), "c levels increased" (Expand Search), "ic cases increased" (Expand Search), "_ cases increased" (Expand Search), "3 cases increased" (Expand Search)
"ct larger decrease" » "ct marked decrease" (Expand Search), "_ larger decrease" (Expand Search), "c large decrease" (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"c cases increased\") OR (((\"ct largest decrease\") OR (\"ct larger decrease\"))))~".
• Removing quotes may allow a broader search: (( c cases increased ) OR ((( ct largest decrease ) OR ( ct larger decrease ))))~.
• Adding a wildcard symbol may retrieve word variants: (("c cases increased") OR ((("ct largest decrease") OR ("ct larger decrease"))))*.