Perhaps you should try some spelling variations:
protease release » protein release (Expand search), protease esterase (Expand search), proteins released (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)
release after » relapse after (Expand search), decrease after (Expand search), disease after (Expand search)
decrease hiv » decrease their (Expand search), decreased high (Expand search), decrease with (Expand search)
hiv decrease » via decrease (Expand search), hiv increase (Expand search), will decrease (Expand search)
in protease » on protease (Expand search), main protease (Expand search), and protease (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 that decrease hiv decrease ) OR ( decrease in protease release after ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease that decrease hiv decrease ) OR ( decrease in protease release after ))*.