Perhaps you should try some spelling variations:
decrease processes » disease processes (Expand search), defense processes (Expand search), decay processes (Expand search)
decrease decrease » decrease release (Expand search), decreases disease (Expand search), disease decreases (Expand search)
decrease after » disease after (Expand search)
spectral ir » spectral and (Expand search), spectral gap (Expand search)
ir decrease » or decrease (Expand search), or decreases (Expand search), via decrease (Expand search)

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

• Removing quotes may allow a broader search: (( decrease OR decrease decrease processes ) OR ( spectral ir decrease decrease after ))~.