Perhaps you should try some spelling variations:
"_ largest decrease" » "_ largest decreases" (Expand Search), "_ larger decrease" (Expand Search), "_ marked decrease" (Expand Search), "_ large decrease" (Expand Search)
"i values decrease" » "i values increased" (Expand Search), "_ values decrease" (Expand Search)
"_ days increased" » "_ dalys increased" (Expand Search), "_ mass increased" (Expand Search), "_ cases increased" (Expand Search), "7 days increased" (Expand Search), "_ day increased" (Expand Search), "5 days 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: "((((\"i values decrease\") OR (\"_ days increased\"))) OR (\"_ largest decrease\"))~".
• Removing quotes may allow a broader search: (((( i values decrease ) OR ( _ days increased ))) OR ( _ largest decrease ))~.
• Adding a wildcard symbol may retrieve word variants: (((("i values decrease") OR ("_ days increased"))) OR ("_ largest decrease"))*.