Perhaps you should try some spelling variations:
"_ largest decrease" » "_ marked decrease" (Expand Search), "_ large decrease" (Expand Search)
"c larger decrease" » "c marked decrease" (Expand Search), "_ larger decrease" (Expand Search), "_ large decrease" (Expand Search), "a large decrease" (Expand Search), "a larger decrease" (Expand Search), "b larger decrease" (Expand Search)
"c large decrease" » "c marked decrease" (Expand Search), "c large increases" (Expand Search), "c large degree" (Expand Search), "_ large decrease" (Expand Search), "a large decrease" (Expand Search), "b 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 large decrease\") OR (\"_ largest decrease\"))) OR (\"c larger decrease\"))~".
• Removing quotes may allow a broader search: (((( c large decrease ) OR ( _ largest decrease ))) OR ( c larger decrease ))~.
• Adding a wildcard symbol may retrieve word variants: (((("c large decrease") OR ("_ largest decrease"))) OR ("c larger decrease"))*.