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