Perhaps you should try some spelling variations:
"50 ns decrease" » "50 nn decrease" (Expand Search), "50 a decrease" (Expand Search), "50 we decrease" (Expand Search), "50 ms decrease" (Expand Search), "50 ngs decrease" (Expand Search), "50 μs decrease" (Expand Search), "50 cs decrease" (Expand Search)
"50 μn decrease" » "50 μnn decrease" (Expand Search), "50 μa decrease" (Expand Search), "50 μ_ decreased" (Expand Search)
"50 n decrease" » "50 nn decrease" (Expand Search), "50 a decrease" (Expand Search), "50 _ decreased" (Expand Search), "50 ng decrease" (Expand Search), "50 μ decrease" (Expand Search), "50 c decrease" (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("50 _ decrease") OR ((((("50 ns decrease") OR ("50 μn decrease"))) OR ("50 n decrease"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"50 _ decrease\") OR (((((\"50 ns decrease\") OR (\"50 μn decrease\"))) OR (\"50 n decrease\"))))".
• Removing quotes may allow a broader search: (( 50 _ decrease ) OR ((((( 50 ns decrease ) OR ( 50 μn decrease ))) OR ( 50 n decrease )))).
• Adding a wildcard symbol may retrieve word variants: (("50 _ decrease") OR ((((("50 ns decrease") OR ("50 μn decrease"))) OR ("50 n decrease"))))*.