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