Perhaps you should try some spelling variations:
"c marked decrease" » "c marked increase" (Expand Search), "_ marked decrease" (Expand Search), "a marked decrease" (Expand Search), "n marked decrease" (Expand Search)
"ic cases increased" » "ic rate increased" (Expand Search), "ic levels increased" (Expand Search), "19 cases increased" (Expand Search), "_ cases increased" (Expand Search), "3 cases increased" (Expand Search)
"i values decrease" » "i values increased" (Expand Search), "i largest decrease" (Expand Search), "_ values 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 marked decrease\") OR (\"ic cases increased\"))) OR (\"i values decrease\"))~".
• Removing quotes may allow a broader search: (((( c marked decrease ) OR ( ic cases increased ))) OR ( i values decrease ))~.
• Adding a wildcard symbol may retrieve word variants: (((("c marked decrease") OR ("ic cases increased"))) OR ("i values decrease"))*.