Perhaps you should try some spelling variations:
decrease their » decrease the (Expand search), increase their (Expand search), decreases the (Expand search)
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)
their disease » the disease (Expand search), hair diseases (Expand search)
disease to » disease the (Expand search), disease _ (Expand search), disease type (Expand search)
in flames » in flame (Expand search), in frames (Expand search), in flores (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 their disease to decrease ) OR ( decrease costs decrease in flames ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease their disease to decrease ) OR ( decrease costs decrease in flames ))*.