Perhaps you should try some spelling variations:
"i values decrease" » "i values increased" (Expand Search), "i largest decrease" (Expand Search), "_ values decrease" (Expand Search)
"c cases increased" » "c levels increased" (Expand Search), "c cycles increases" (Expand Search), "ic cases increased" (Expand Search), "c2 cases increased" (Expand Search), "_ cases increased" (Expand Search)
"c marked decrease" » "c marked increase" (Expand Search), "_ marked decrease" (Expand Search), "a marked decrease" (Expand Search), "n marked 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: "((((\"i values decrease\") OR (\"c cases increased\"))) OR (\"c marked decrease\"))~".
• Removing quotes may allow a broader search: (((( i values decrease ) OR ( c cases increased ))) OR ( c marked decrease ))~.
• Adding a wildcard symbol may retrieve word variants: (((("i values decrease") OR ("c cases increased"))) OR ("c marked decrease"))*.