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