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