Perhaps you should try some spelling variations:
decrease their » decrease the (Expand search), increase their (Expand search), decreases the (Expand search)
their increase » the increase (Expand search), they increase (Expand search), their increasing (Expand search)
increase with » increases with (Expand search)
with decrease » with decreased (Expand search), with deceased (Expand search), with increase (Expand search)
decrease road » decrease food (Expand search), decrease sod (Expand search), decreased rorc (Expand search)
road objects » sound objects (Expand search), rigid objects (Expand search), focal 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 their increase with decrease ) OR ( decrease _ decrease road objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease their increase with decrease ) OR ( decrease _ decrease road objects ))*.