Perhaps you should try some spelling variations:
nn decrease » a decrease (Expand Search), mean decrease (Expand Search), gy decreased (Expand Search)
cs decrease » a decrease (Expand Search), c decreased (Expand Search), we decrease (Expand Search)
n decrease » a decrease (Expand Search), _ decreased (Expand Search), _ decreases (Expand Search)
50 nn » 50 ns (Expand Search), 50 ng (Expand Search), 59 nn (Expand Search)
50 cs » 50 cas (Expand Search), 50 c (Expand Search), 50 ms (Expand Search)
50 n » 50 ns (Expand Search), 50 ng (Expand Search), 50 μ (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 n decrease ) OR ( 50 cs decrease ))) OR ( 50 _ decrease ))))~".
• Adding a wildcard symbol may retrieve word variants: (( 50 nn decrease ) OR ((((( 50 n decrease ) OR ( 50 cs decrease ))) OR ( 50 _ decrease ))))*.