Perhaps you should try some spelling variations:
decrease survival » decreased survival (Expand search), decreases survival (Expand search), increase survival (Expand search)
survival extent » survival effect (Expand search), survival exponents (Expand search), survival eternity (Expand search)
skins decrease » statins decrease (Expand search), lesions decrease (Expand search)
decrease skins » increase skin (Expand search), decrease owing (Expand search), decrease its (Expand search)
decrease that » decrease the (Expand search), decrease at (Expand search), decrees that (Expand search)
that decrease » that increase (Expand search), that increases (Expand search), not decrease (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain 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: "(( decrease in decrease that decrease ) OR ( decrease skins decrease survival extent ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease in decrease that decrease ) OR ( decrease skins decrease survival extent ))*.