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