Perhaps you should try some spelling variations:
"5 non decrease" » "5 _ decrease" (Expand Search), "_ non decrease" (Expand Search), "a non decrease" (Expand Search), "b non decrease" (Expand Search)
"e non decrease" » "e _ decrease" (Expand Search), "_ non decrease" (Expand Search), "a non decrease" (Expand Search), "b non decrease" (Expand Search)
"_ ann decrease" » "_ _ decrease" (Expand Search), "_ ant decrease" (Expand Search), "_ any decrease" (Expand Search)
"5 a decrease" » "5 _ decrease" (Expand Search), "5 _ decreased" (Expand Search), "5 _ 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 a decrease\") OR (((\"5 non decrease\") OR (((\"e non decrease\") OR (\"_ ann decrease\"))))))~".
• Removing quotes may allow a broader search: (( 5 a decrease ) OR ((( 5 non decrease ) OR ((( e non decrease ) OR ( _ ann decrease ))))))~.
• Adding a wildcard symbol may retrieve word variants: (("5 a decrease") OR ((("5 non decrease") OR ((("e non decrease") OR ("_ ann decrease"))))))*.