Perhaps you should try some spelling variations:
"50 ms decrease" » "50 _ decrease" (Expand Search)
"50 ng decrease" » "50 _ decrease" (Expand Search), "10 ng decrease" (Expand Search), "50 μg decrease" (Expand Search), "50 _g decrease" (Expand Search), "50 ig decrease" (Expand Search)
"50 cs decrease" » "50 _ decrease" (Expand Search)
"50 n decrease" » "50 _ decrease" (Expand Search), "50 _ decreased" (Expand Search), "50 _ decreases" (Expand Search), "50 i decrease" (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 ms decrease\") OR (\"50 n decrease\"))) OR (\"50 ng decrease\"))) OR (\"50 cs decrease\"))~".
• Removing quotes may allow a broader search: (((((( 50 ms decrease ) OR ( 50 n decrease ))) OR ( 50 ng decrease ))) OR ( 50 cs decrease ))~.
• Adding a wildcard symbol may retrieve word variants: (((((("50 ms decrease") OR ("50 n decrease"))) OR ("50 ng decrease"))) OR ("50 cs decrease"))*.