Perhaps you should try some spelling variations:
"ct values increased" » "ct cases increased" (Expand Search), "ct dalys increased" (Expand Search), "ct also increased" (Expand Search), "_ values increased" (Expand Search), "i values increased" (Expand Search)
"ct values decrease" » "ct largest decrease" (Expand Search), "_ values decrease" (Expand Search), "i values decrease" (Expand Search)
"c large decrease" » "c larger decrease" (Expand Search), "c marked decrease" (Expand Search), "c large increases" (Expand Search), "_ large decrease" (Expand Search), "a large decrease" (Expand Search), "b 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 large decrease\") OR (((\"ct values decrease\") OR (\"ct values increased\"))))~".
• Removing quotes may allow a broader search: (( c large decrease ) OR ((( ct values decrease ) OR ( ct values increased ))))~.
• Adding a wildcard symbol may retrieve word variants: (("c large decrease") OR ((("ct values decrease") OR ("ct values increased"))))*.