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