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