Perhaps you should try some spelling variations:
026 decrease » _ decrease (Expand Search)
nn decrease » _ decrease (Expand Search), mean decrease (Expand Search), gy decreased (Expand Search)
ns decrease » _ decrease (Expand Search), we decrease (Expand Search), use decreased (Expand Search)
a decrease » _ decrease (Expand Search), _ decreased (Expand Search), _ decreases (Expand Search)
50 nn » 50 ng (Expand Search), 50 n (Expand Search), 59 nn (Expand Search)
50 ns » 50 ms (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 ((026 decrease) OR (a decrease)) ) OR ((( 50 nn decrease ) OR ( 50 ns decrease ))))~".
• Adding a wildcard symbol may retrieve word variants: (( 50 ((026 decrease) OR (a decrease)) ) OR ((( 50 nn decrease ) OR ( 50 ns decrease ))))*.