Perhaps you should try some spelling variations:
"50 ns decrease" » "50 nn decrease" (Expand Search), "50 _ decrease" (Expand Search), "50 a decrease" (Expand Search), "50 ms decrease" (Expand Search), "50 ngs decrease" (Expand Search), "50 μs decrease" (Expand Search), "50 _s decrease" (Expand Search)
"5 ng decrease" » "5 nn decrease" (Expand Search), "5 _ decrease" (Expand Search), "5 a decrease" (Expand Search), "5 mg decrease" (Expand Search), "5 g decrease" (Expand Search), "5 nm decrease" (Expand Search)
"50 n decrease" » "50 nn decrease" (Expand Search), "50 _ decrease" (Expand Search), "50 a decrease" (Expand Search), "50 ng decrease" (Expand Search), "50 μ 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 ns decrease") OR ("50 n decrease"))) OR ("5 ng decrease"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"50 ns decrease\") OR (\"50 n decrease\"))) OR (\"5 ng decrease\"))*".
• Removing quotes may allow a broader search: (((( 50 ns decrease ) OR ( 50 n decrease ))) OR ( 5 ng decrease ))*.