Perhaps you should try some spelling variations:
during decrease » during increased (Expand search), during depressed (Expand search), during disease (Expand search)
decrease visual » decreased visual (Expand search), decrease visceral (Expand search), decreases visceral (Expand search)
visual object » virtual object (Expand search), virtual objects (Expand search)
decrease or » decrease of (Expand search), decrease on (Expand search), decrease pro (Expand search)
or decrease » of decrease (Expand search), not decrease (Expand search), to decrease (Expand search)

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

• Removing quotes may allow a broader search: (( decrease _ decrease or decrease ) OR ( increase during decrease visual object ))~.