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