Perhaps you should try some spelling variations:
"i largest decrease" » "i largest decreases" (Expand Search), "i marked decrease" (Expand Search), "_ largest decrease" (Expand Search), "i large decrease" (Expand Search)
"c larger decrease" » "c marked decrease" (Expand Search), "_ larger decrease" (Expand Search), "c large decrease" (Expand Search), "_ large decrease" (Expand Search)
"_ cases increased" » "_ rate increased" (Expand Search), "_ levels increased" (Expand Search), "_ case increased" (Expand Search), "19 cases 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: "((((\"c larger decrease\") OR (\"_ cases increased\"))) OR (\"i largest decrease\"))~".
• Removing quotes may allow a broader search: (((( c larger decrease ) OR ( _ cases increased ))) OR ( i largest decrease ))~.
• Adding a wildcard symbol may retrieve word variants: (((("c larger decrease") OR ("_ cases increased"))) OR ("i largest decrease"))*.