Perhaps you should try some spelling variations:
significant increased » significant increase (Expand Search), significant increases (Expand Search), significantly increased (Expand Search)
significantly delayed » significantly related (Expand Search), significantly decreased (Expand Search), significantly elevated (Expand Search)
increased crash » increased cgas (Expand Search), increased across (Expand Search), increased risk (Expand Search)
decrease » decreased (Expand Search), increase (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: "(( significant increased crash ) OR ( significantly delayed decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( significant increased crash ) OR ( significantly delayed decrease ))*.