Perhaps you should try some spelling variations:
"ct marked decrease" » "ct marked increase" (Expand Search), "_ marked decrease" (Expand Search), "a marked decrease" (Expand Search)
"n marked decrease" » "n marked increase" (Expand Search), "_ marked decrease" (Expand Search), "a marked decrease" (Expand Search), "_ market decrease" (Expand Search)
"c large decrease" » "c larger 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: (((("ct marked decrease") OR ("n marked decrease"))) OR ("c large decrease"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"ct marked decrease\") OR (\"n marked decrease\"))) OR (\"c large decrease\"))".
• Removing quotes may allow a broader search: (((( ct marked decrease ) OR ( n marked decrease ))) OR ( c large decrease )).
• Adding a wildcard symbol may retrieve word variants: (((("ct marked decrease") OR ("n marked decrease"))) OR ("c large decrease"))*.