Perhaps you should try some spelling variations:
decrease costs » decreasing costs (Expand search), decreases post (Expand search), disease costs (Expand search)
costs decrease » loss decrease (Expand search), not decrease (Expand search), cells decrease (Expand search)
decrease risk » decreased risk (Expand search), increase risk (Expand search), decrease in (Expand search)
risk increase » diet increase (Expand search)
decrease real » decrease renal (Expand search), decreased renal (Expand search), decreases renal (Expand search)
increase toc » increase to (Expand search), increase the (Expand search), increase tax (Expand search)
toc decrease » to decrease (Expand search), the decrease (Expand search), not decrease (Expand search)
real objects » null objects (Expand search), belt objects (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: "(( decrease risk increase toc decrease ) OR ( decrease costs decrease real objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease risk increase toc decrease ) OR ( decrease costs decrease real objects ))*.