Perhaps you should try some spelling variations:
"_ nn decrease" » "_ non decrease" (Expand Search), "_ n decrease" (Expand Search), "_ na decrease" (Expand Search), "_ nn decreased" (Expand Search), "_ nn increase" (Expand Search)
"50 ms decrease" » "50 ms decreased" (Expand Search), "50 ms increase" (Expand Search)
"50 _ decrease" » "50 _ decreased" (Expand Search), "50 _ increase" (Expand Search)
"50 ng decrease" » "50 ng decreased" (Expand Search), "50 ng increase" (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 _ decrease\"))) OR (\"50 ng decrease\"))) OR (\"_ nn decrease\"))~".
• Removing quotes may allow a broader search: (((((( 50 ms decrease ) OR ( 50 _ decrease ))) OR ( 50 ng decrease ))) OR ( _ nn decrease ))~.
• Adding a wildcard symbol may retrieve word variants: (((((("50 ms decrease") OR ("50 _ decrease"))) OR ("50 ng decrease"))) OR ("_ nn decrease"))*.