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