Perhaps you should try some spelling variations:
significantly smaller » significantly larger (Expand Search), significantly shorter (Expand Search), significantly higher (Expand Search)
significantly mean » significantly less (Expand Search), significantly mediate (Expand Search), significantly impact (Expand Search)
smaller decrease » small decrease (Expand Search), marked decrease (Expand Search), smaller areas (Expand Search)
mean decrease » a decrease (Expand Search)

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

• Removing quotes may allow a broader search: (( significantly smaller decrease ) OR ( significantly mean decrease ))*.