Perhaps you should try some spelling variations:
"50 we decrease" » "50 _ decrease" (Expand Search)
"50 mg decrease" » "50 _ decrease" (Expand Search), "50 μg decrease" (Expand Search)
"50 ms decrease" » "50 _ decrease" (Expand Search)
"50 a decrease" » "50 _ decrease" (Expand Search), "50 _ decreased" (Expand Search), "50 _ decreases" (Expand Search), "5 a decrease" (Expand Search), "50 i decrease" (Expand Search)

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 we decrease") OR ("50 mg decrease"))))) OR ("50 ms decrease"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"50 a decrease\") OR (((\"50 we decrease\") OR (\"50 mg decrease\"))))) OR (\"50 ms decrease\"))*".
• Removing quotes may allow a broader search: (((( 50 a decrease ) OR ((( 50 we decrease ) OR ( 50 mg decrease ))))) OR ( 50 ms decrease ))*.