Perhaps you should try some spelling variations:
"_ feb decrease" » "_ _ decrease" (Expand Search), "_ web decrease" (Expand Search), "_ fed decrease" (Expand Search), "_ fes decrease" (Expand Search)
"50 ns decrease" » "50 _ decrease" (Expand Search)
"_ we decrease" » "_ _ decrease" (Expand Search), "_ web decrease" (Expand Search), "_ e decrease" (Expand Search), "_ fe decrease" (Expand Search)
"2 wt decrease" » "2 _ decrease" (Expand Search), "_ wt decrease" (Expand Search), "i wt 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 ns decrease\") OR (((((\"_ we decrease\") OR (\"_ feb decrease\"))) OR (\"2 wt decrease\"))))~".
• Removing quotes may allow a broader search: (( 50 ns decrease ) OR ((((( _ we decrease ) OR ( _ feb decrease ))) OR ( 2 wt decrease ))))~.
• Adding a wildcard symbol may retrieve word variants: (("50 ns decrease") OR ((((("_ we decrease") OR ("_ feb decrease"))) OR ("2 wt decrease"))))*.