Perhaps you should try some spelling variations:
significant decrease » significant increase (Expand Search), significantly increased (Expand Search)
significant sizes » significant size (Expand Search), significant side (Expand Search), significant shifts (Expand Search)
sizes decrease » size increase (Expand Search), scores decreased (Expand Search)
decrease cgas » increased cgas (Expand Search), increases cgas (Expand Search)

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

• Removing quotes may allow a broader search: (( significant decrease cgas ) OR ( significant sizes decrease ))~.