Perhaps you should try some spelling variations:
nn decrease » _ decrease (Expand Search), a decrease (Expand Search), mean decrease (Expand Search)
ng decrease » _ decrease (Expand Search), a decrease (Expand Search), we decrease (Expand Search)
c decrease » c decreased (Expand Search), _ decrease (Expand Search), a decrease (Expand Search)
50 nn » 50 ns (Expand Search), 50 ng (Expand Search), 50 n (Expand Search)
5 ng » 5 mg (Expand Search), 5 g (Expand Search), 5 nm (Expand Search)
5 c » 25 c (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 ((( 5 c decrease ) OR ( 5 ng decrease ))))~".
• Adding a wildcard symbol may retrieve word variants: (( 50 nn decrease ) OR ((( 5 c decrease ) OR ( 5 ng decrease ))))*.