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)
"i large decrease" » "i large increases" (Expand Search), "i large degree" (Expand Search), "_ large decrease" (Expand Search), "a large decrease" (Expand Search), "via large decrease" (Expand Search)
"3 rate increased" » "3 greater increase" (Expand Search), "_ rate increased" (Expand Search), "3 race increased" (Expand Search), "n rate 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: "((((\"i large decrease\") OR (\"c marked decrease\"))) OR (\"3 rate increased\"))~".
• Removing quotes may allow a broader search: (((( i large decrease ) OR ( c marked decrease ))) OR ( 3 rate increased ))~.
• Adding a wildcard symbol may retrieve word variants: (((("i large decrease") OR ("c marked decrease"))) OR ("3 rate increased"))*.