Perhaps you should try some spelling variations:
largest decrease » larger decrease (Expand Search)
marker decrease » larger decrease (Expand Search), marked increase (Expand Search), markedly decreased (Expand Search)
marked decrease » marked increase (Expand Search)
a largest » _ largest (Expand Search), a large (Expand Search), a latest (Expand Search)
a marker » _ marker (Expand Search), _ markers (Expand Search)
n marked » _ marked (Expand Search), a marked (Expand Search), _ market (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 marker decrease ) OR ( n marked decrease ))) OR ( a largest decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (((( a marker decrease ) OR ( n marked decrease ))) OR ( a largest decrease ))*.