Perhaps you should try some spelling variations:
greatest decrease » treatment decreased (Expand Search), greater increase (Expand Search)
significant shape » significant change (Expand Search), significant gap (Expand Search), significant side (Expand Search)
shape decrease » shape increases (Expand Search), small decrease (Expand Search), step decrease (Expand Search)
we decrease » _ decrease (Expand Search), a decrease (Expand Search), nn 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 (greatest decrease)) ) OR ( significant shape decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( significantly ((we decrease) OR (greatest decrease)) ) OR ( significant shape decrease ))*.