Perhaps you should try some spelling variations:
decrease buried » decrease burden (Expand search), decrease during (Expand search), decrease observed (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)
buried object » buried objects (Expand search), based object (Expand search), marked object (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)

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 AND decrease that decrease ) OR ( decrease NOT decrease buried object ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease and decrease that decrease ) OR ( decrease NOT decrease buried object ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease and decrease that decrease ) OR ( decrease NOT decrease buried object ))*.