Perhaps you should try some spelling variations:
largest decrease » largest decreases (Expand Search), larger decrease (Expand Search), marked decrease (Expand Search)
cases increased » rate increased (Expand Search), levels increased (Expand Search)
large decrease » marked decrease (Expand Search), large increases (Expand Search), large degree (Expand Search)
a largest » _ largest (Expand Search), a large (Expand Search), a latest (Expand Search)
c2 cases » 152 cases (Expand Search), chd cases (Expand Search), 123 cases (Expand Search)
c large » _ large (Expand Search), a large (Expand Search), i large (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: "(((( a largest decrease ) OR ( c large decrease ))) OR ( c2 cases increased ))~".
• Adding a wildcard symbol may retrieve word variants: (((( a largest decrease ) OR ( c large decrease ))) OR ( c2 cases increased ))*.