Perhaps you should try some spelling variations:
"5 we decrease" » "5 _ decrease" (Expand Search), "_ we decrease" (Expand Search)
"_ wt decrease" » "_ _ decrease" (Expand Search)
"_ fe decrease" » "_ _ decrease" (Expand Search), "_ e decrease" (Expand Search)
"50 i decrease" » "50 _ decrease" (Expand Search), "50 _ decreased" (Expand Search), "50 _ decreases" (Expand Search), "10 i decrease" (Expand Search), "5 i decrease" (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"50 i decrease\") OR (((\"5 we decrease\") OR (((\"_ wt decrease\") OR (\"_ fe decrease\"))))))~".
• Removing quotes may allow a broader search: (( 50 i decrease ) OR ((( 5 we decrease ) OR ((( _ wt decrease ) OR ( _ fe decrease ))))))~.
• Adding a wildcard symbol may retrieve word variants: (("50 i decrease") OR ((("5 we decrease") OR ((("_ wt decrease") OR ("_ fe decrease"))))))*.