Perhaps you should try some spelling variations:
"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)
"b larger decrease" » "b marked decrease" (Expand Search), "_ larger decrease" (Expand Search), "b large decrease" (Expand Search), "_ large 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("c large decrease") OR ((("c larger decrease") OR ("b larger decrease"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"c large decrease\") OR (((\"c larger decrease\") OR (\"b larger decrease\"))))".
• Removing quotes may allow a broader search: (( c large decrease ) OR ((( c larger decrease ) OR ( b larger decrease )))).
• Adding a wildcard symbol may retrieve word variants: (("c large decrease") OR ((("c larger decrease") OR ("b larger decrease"))))*.