Perhaps you should try some spelling variations:
"c large decrease" » "c marked decrease" (Expand Search), "c large increases" (Expand Search), "c large degree" (Expand Search), "a large decrease" (Expand Search), "i large decrease" (Expand Search), "b large decrease" (Expand Search)
"_ large decrease" » "_ marked decrease" (Expand Search), "_ large increases" (Expand Search), "_ large degree" (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: "((((\"c large decrease\") OR (\"_ large decrease\"))) OR (\"_ days increased\"))~".
• Removing quotes may allow a broader search: (((( c large decrease ) OR ( _ large decrease ))) OR ( _ days increased ))~.
• Adding a wildcard symbol may retrieve word variants: (((("c large decrease") OR ("_ large decrease"))) OR ("_ days increased"))*.