Perhaps you should try some spelling variations:
"i largest decrease" » "i largest decreases" (Expand Search), "i larger decrease" (Expand Search), "i marked decrease" (Expand Search), "_ largest decrease" (Expand Search), "i large decrease" (Expand Search)
"_ values decrease" » "_ values increased" (Expand Search)
"8 cases increased" » "8 rate increased" (Expand Search), "8 levels increased" (Expand Search), "_ cases increased" (Expand Search), "3 cases 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: "((\"_ values decrease\") OR (((\"i largest decrease\") OR (\"8 cases increased\"))))~".
• Removing quotes may allow a broader search: (( _ values decrease ) OR ((( i largest decrease ) OR ( 8 cases increased ))))~.
• Adding a wildcard symbol may retrieve word variants: (("_ values decrease") OR ((("i largest decrease") OR ("8 cases increased"))))*.