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