Perhaps you should try some spelling variations:
"_ wt decrease" » "_ _ decrease" (Expand Search)
"5 c decrease" » "5 _ decrease" (Expand Search), "5 _ decreased" (Expand Search), "5 _ decreases" (Expand Search), "45 c decrease" (Expand Search)
"10 i decrease" » "10 _ decrease" (Expand Search), "10 _ decreased" (Expand Search), "10 _ decreases" (Expand Search), "1 i decrease" (Expand Search), "16 i decrease" (Expand Search)
"_ e decrease" » "_ _ decrease" (Expand Search), "_ _ decreased" (Expand Search), "_ _ decreases" (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: "((\"5 c decrease\") OR (((\"10 i decrease\") OR (((\"_ wt decrease\") OR (\"_ e decrease\"))))))~".
• Removing quotes may allow a broader search: (( 5 c decrease ) OR ((( 10 i decrease ) OR ((( _ wt decrease ) OR ( _ e decrease ))))))~.
• Adding a wildcard symbol may retrieve word variants: (("5 c decrease") OR ((("10 i decrease") OR ((("_ wt decrease") OR ("_ e decrease"))))))*.