Perhaps you should try some spelling variations:
"5 ng decrease" » "5 _ decrease" (Expand Search), "5 we decrease" (Expand Search), "5 gy decreased" (Expand Search), "5 mg decrease" (Expand Search), "5 g decrease" (Expand Search), "5 nm decrease" (Expand Search)
"5 nn decrease" » "5 _ decrease" (Expand Search), "5 gy decreased" (Expand Search), "5 b1 decreased" (Expand Search), "5 non decrease" (Expand Search), "59 nn decrease" (Expand Search), "5 nm decrease" (Expand Search)
"5 a decrease" » "5 _ decrease" (Expand Search), "5 _ decreased" (Expand Search), "5 _ decreases" (Expand Search)
"50 mean decrease" » "20 means 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 a decrease") OR ((("50 mean decrease") OR ((("5 ng decrease") OR ("5 nn decrease"))))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"5 a decrease\") OR (((\"50 mean decrease\") OR (((\"5 ng decrease\") OR (\"5 nn decrease\"))))))".
• Removing quotes may allow a broader search: (( 5 a decrease ) OR ((( 50 mean decrease ) OR ((( 5 ng decrease ) OR ( 5 nn decrease )))))).
• Adding a wildcard symbol may retrieve word variants: (("5 a decrease") OR ((("50 mean decrease") OR ((("5 ng decrease") OR ("5 nn decrease"))))))*.