Perhaps you should try some spelling variations:
"50 ms decrease" » "50 _ decrease" (Expand Search)
"100 ng decrease" » "100 _ decrease" (Expand Search), "100 nm decrease" (Expand Search), "10 ng decrease" (Expand Search), "100 mg decrease" (Expand Search)
"_ fe decrease" » "_ _ decrease" (Expand Search), "_ f_ decrease" (Expand Search), "_ f_ decreased" (Expand Search), "_ f_ decreases" (Expand Search)
"_ e decrease" » "_ _ decrease" (Expand Search), "_ _ decreased" (Expand Search), "_ _ decreases" (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 (\"100 ng decrease\"))) OR (((\"_ fe decrease\") OR (\"_ e decrease\"))))~".
• Removing quotes may allow a broader search: (((( 50 ms decrease ) OR ( 100 ng decrease ))) OR ((( _ fe decrease ) OR ( _ e decrease ))))~.
• Adding a wildcard symbol may retrieve word variants: (((("50 ms decrease") OR ("100 ng decrease"))) OR ((("_ fe decrease") OR ("_ e decrease"))))*.