Perhaps you should try some spelling variations:
"50 026 decrease" » "50 _ decrease" (Expand Search)
"50 nn decrease" » "50 _ decrease" (Expand Search)
"1_ we decrease" » "1_ _ decrease" (Expand Search), "_ we decrease" (Expand Search)
"10 a decrease" » "10 _ decrease" (Expand Search), "10 _ decreased" (Expand Search), "10 _ decreases" (Expand Search), "19 a decrease" (Expand Search), "1 a 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: (("50 026 decrease") OR ((("50 nn decrease") OR ((("1_ we decrease") OR ("10 a decrease"))))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"50 026 decrease\") OR (((\"50 nn decrease\") OR (((\"1_ we decrease\") OR (\"10 a decrease\"))))))*".
• Removing quotes may allow a broader search: (( 50 026 decrease ) OR ((( 50 nn decrease ) OR ((( 1_ we decrease ) OR ( 10 a decrease ))))))*.