Perhaps you should try some spelling variations:
significantly longer » significantly lower (Expand Search), significantly larger (Expand Search), significantly higher (Expand Search)
longer decrease » larger decrease (Expand Search), linear decrease (Expand Search), largest decrease (Expand Search)
we decrease » _ decrease (Expand Search), a decrease (Expand Search), mean decrease (Expand Search)
nn decrease » _ decrease (Expand Search), a decrease (Expand Search), mean 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: "\"((\\"significantly ((we decrease) OR (nn decrease))\\") OR (\\"significantly longer decrease\\"))\"".
• Removing quotes may allow a broader search: (( significantly ((we decrease) OR (nn decrease)) ) OR ( significantly longer decrease )).