Perhaps you should try some spelling variations:
largest decrease » largest decreases (Expand Search), larger decrease (Expand Search), marked decrease (Expand Search)
large decrease » marked decrease (Expand Search), large increases (Expand Search), large degree (Expand Search)
c largest » _ largest (Expand Search)
c2 levels » 2 levels (Expand Search), c levels (Expand Search), cd levels (Expand Search)
42 levels » 2 levels (Expand Search), 4 levels (Expand Search), _ levels (Expand Search)
c large » _ large (Expand Search), a large (Expand Search), i large (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: "(((( c largest decrease ) OR ( c large decrease ))) OR ( ((c2 levels) OR (42 levels)) increased ))~".
• Adding a wildcard symbol may retrieve word variants: (((( c largest decrease ) OR ( c large decrease ))) OR ( ((c2 levels) OR (42 levels)) increased ))*.