Perhaps you should try some spelling variations:
"50 ns decrease" » "50 nn decrease" (Expand Search), "50 _ decrease" (Expand Search), "50 use decreased" (Expand Search), "50 ms decrease" (Expand Search)
"5 we decrease" » "5 _ decrease" (Expand Search), "5 nn decrease" (Expand Search), "5 mean decrease" (Expand Search), "_ we decrease" (Expand Search), "5 wt decrease" (Expand Search), "5 w decrease" (Expand Search)
"5 mg decrease" » "5 _ decrease" (Expand Search), "5 nn decrease" (Expand Search), "5 mean decrease" (Expand Search), "5 mm decrease" (Expand Search)
"50 a decrease" » "50 _ decrease" (Expand Search), "50 _ decreased" (Expand Search), "50 _ decreases" (Expand Search), "50 μ decrease" (Expand Search), "50 c decrease" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("50 a decrease") OR ((("50 ns decrease") OR ((("5 we decrease") OR ("5 mg decrease"))))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"50 a decrease\") OR (((\"50 ns decrease\") OR (((\"5 we decrease\") OR (\"5 mg decrease\"))))))".
• Removing quotes may allow a broader search: (( 50 a decrease ) OR ((( 50 ns decrease ) OR ((( 5 we decrease ) OR ( 5 mg decrease )))))).
• Adding a wildcard symbol may retrieve word variants: (("50 a decrease") OR ((("50 ns decrease") OR ((("5 we decrease") OR ("5 mg decrease"))))))*.