Perhaps you should try some spelling variations:
"a largest decrease" » "a largest decreases" (Expand Search), "a larger decrease" (Expand Search), "a marked decrease" (Expand Search), "_ largest decrease" (Expand Search), "a large decrease" (Expand Search), "a latest decrease" (Expand Search)
"via large decrease" » "via marked decrease" (Expand Search), "via large increases" (Expand Search), "via large degree" (Expand Search), "a large decrease" (Expand Search)
"ct rate increased" » "ct greater increase" (Expand Search), "hit rate increased" (Expand Search), "cue rate increased" (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: "((((\"a largest decrease\") OR (\"via large decrease\"))) OR (\"ct rate increased\"))~".
• Removing quotes may allow a broader search: (((( a largest decrease ) OR ( via large decrease ))) OR ( ct rate increased ))~.
• Adding a wildcard symbol may retrieve word variants: (((("a largest decrease") OR ("via large decrease"))) OR ("ct rate increased"))*.