Perhaps you should try some spelling variations:
"50 mean decrease" » "50 a decrease" (Expand Search), "20 means decrease" (Expand Search)
"50 ng decrease" » "50 nn decrease" (Expand Search), "50 _ decrease" (Expand Search), "50 a decrease" (Expand Search), "50 mg decrease" (Expand Search), "10 ng decrease" (Expand Search), "5 ng decrease" (Expand Search)
"50 we decrease" » "50 _ decrease" (Expand Search), "50 a decrease" (Expand Search), "50 nn decrease" (Expand Search)
"5 c decrease" » "5 c decreased" (Expand Search), "5 _ decrease" (Expand Search), "5 a decrease" (Expand Search), "25 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: (("5 c decrease") OR ((((("50 mean decrease") OR ("50 ng decrease"))) OR ("50 we decrease"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"5 c decrease\") OR (((((\"50 mean decrease\") OR (\"50 ng decrease\"))) OR (\"50 we decrease\"))))".
• Removing quotes may allow a broader search: (( 5 c decrease ) OR ((((( 50 mean decrease ) OR ( 50 ng decrease ))) OR ( 50 we decrease )))).
• Adding a wildcard symbol may retrieve word variants: (("5 c decrease") OR ((((("50 mean decrease") OR ("50 ng decrease"))) OR ("50 we decrease"))))*.