Perhaps you should try some spelling variations:
replacing objects » placing objects (Expand search), reaching objects (Expand search), teaching objects (Expand search)
decreased risk » increased risk (Expand search), decreased in (Expand search)
risk decrease » risk decreases (Expand search), risk increase (Expand search), break decrease (Expand search)
decrease its » decreases its (Expand search), decrease with (Expand search), decrease in (Expand search)
its decrease » with decrease (Expand search), nts decreases (Expand search), to decrease (Expand search)
decrease of » decrease in (Expand search)
of decrease » or decrease (Expand search), not decrease (Expand search), to decrease (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: "(( decreased risk decrease of decrease ) OR ( decrease its decrease replacing objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decreased risk decrease of decrease ) OR ( decrease its decrease replacing objects ))*.