Perhaps you should try some spelling variations:
"c marked decrease" » "c marked increase" (Expand Search), "_ marked decrease" (Expand Search), "a marked decrease" (Expand Search), "n marked decrease" (Expand Search)
"a marker decrease" » "a larger decrease" (Expand Search), "a marked increase" (Expand Search), "a markedly decreased" (Expand Search), "_ marker decrease" (Expand Search), "_ markers decrease" (Expand Search)
"a market decrease" » "a largest decrease" (Expand Search), "a marked increase" (Expand Search), "a larger decrease" (Expand Search), "_ market decrease" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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