Perhaps you should try some spelling variations:
"50 ngn decrease" » "50 nn decrease" (Expand Search), "50 mean decrease" (Expand Search), "50 _ decrease" (Expand Search), "50 ngnn decrease" (Expand Search), "50 ng_ decrease" (Expand Search), "50 nga decrease" (Expand Search), "50 ng decrease" (Expand Search), "50 nsgn decrease" (Expand Search), "50 nggn decrease" (Expand Search), "50 _gn decrease" (Expand Search)
"50 cg decrease" » "50 _ decrease" (Expand Search), "50 a decrease" (Expand Search), "50 nn decrease" (Expand Search), "50 mg decrease" (Expand Search), "50 c decrease" (Expand Search), "50 cm decrease" (Expand Search)
"50 μ decrease" » "50 _ decrease" (Expand Search), "50 a decrease" (Expand Search), "50 _ decreased" (Expand Search), "10 μ decrease" (Expand Search), "5 μ decrease" (Expand Search)
"50 n decrease" » "50 nn decrease" (Expand Search), "50 _ decrease" (Expand Search), "50 a decrease" (Expand Search), "50 ns decrease" (Expand Search), "50 ng decrease" (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("50 ngn decrease") OR ("50 cg decrease"))) OR ((("50 n decrease") OR ("50 μ decrease"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"50 ngn decrease\") OR (\"50 cg decrease\"))) OR (((\"50 n decrease\") OR (\"50 μ decrease\"))))*".
• Removing quotes may allow a broader search: (((( 50 ngn decrease ) OR ( 50 cg decrease ))) OR ((( 50 n decrease ) OR ( 50 μ decrease ))))*.