Perhaps you should try some spelling variations:
"3 cases increased" » "3 rate increased" (Expand Search), "3 levels increased" (Expand Search), "_ cases increased" (Expand Search), "19 cases increased" (Expand Search)
"a marked decrease" » "a marked increase" (Expand Search), "a marker decrease" (Expand Search), "_ marked decrease" (Expand Search), "a market decrease" (Expand Search)
"i large decrease" » "i large increases" (Expand Search), "i large degree" (Expand Search), "_ large decrease" (Expand Search), "a large decrease" (Expand Search), "via 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: "((\"3 cases increased\") OR (((\"a marked decrease\") OR (\"i large decrease\"))))~".
• Removing quotes may allow a broader search: (( 3 cases increased ) OR ((( a marked decrease ) OR ( i large decrease ))))~.
• Adding a wildcard symbol may retrieve word variants: (("3 cases increased") OR ((("a marked decrease") OR ("i large decrease"))))*.