Perhaps you should try some spelling variations:
during depressed » during depressive (Expand search), during repressive (Expand search), feeling depressed (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
depressed urea » depressed area (Expand search), depressed areas (Expand search), depressed the (Expand search)
urea decrease » urea increases (Expand search), the decrease (Expand search), or decrease (Expand search)
decrease with » decreases with (Expand search), increase with (Expand search), decrease in (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (Expand search)
with pattern » with patterns (Expand search), with patterned (Expand search), pitch pattern (Expand search)

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( decrease during depressed urea decrease ) OR ( decrease AND decrease with pattern ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease during depressed urea decrease ) OR ( decrease and decrease with pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease during depressed urea decrease ) OR ( decrease and decrease with pattern ))*.