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