Perhaps you should try some spelling variations:
nn decrease » a decrease (Expand Search), mean decrease (Expand Search), gy decreased (Expand Search)
mg decrease » a decrease (Expand Search), we decrease (Expand Search), mean decrease (Expand Search)
ms decrease » a decrease (Expand Search), mean decrease (Expand Search), use decreased (Expand Search)
_ decrease » _ decreased (Expand Search)
50 nn » 50 ns (Expand Search), 50 ng (Expand Search), 50 n (Expand Search)
50 ms » 50 mg (Expand Search), 50 mm (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: "(((( 50 nn decrease ) OR ( 50 ((mg decrease) OR (_ decrease)) ))) OR ( 50 ms decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (((( 50 nn decrease ) OR ( 50 ((mg decrease) OR (_ decrease)) ))) OR ( 50 ms decrease ))*.