Perhaps you should try some spelling variations:
decrease machine » decreases xanthine (Expand search), decreases cocaine (Expand search), decrease walking (Expand search)
decrease theory » decrease their (Expand search), decrease the (Expand search), decreased memory (Expand search)
theory decrease » the decrease (Expand search), therapy decreases (Expand search), memory decreases (Expand search)
decrease burden » disease burden (Expand search), decrease further (Expand search)
burden decrease » burden disease (Expand search), urea decrease (Expand search), burgers decreases (Expand search)
decrease can » decrease in (Expand search), decrease and (Expand search), decrease at (Expand search)
can decrease » and decrease (Expand search), can increase (Expand search), to decrease (Expand search)
machine and » machines and (Expand search), machinery and (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 can decrease theory decrease ) OR ( decrease burden decrease machine AND ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease can decrease theory decrease ) OR ( decrease burden decrease machine and ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease can decrease theory decrease ) OR ( decrease burden decrease machine and ))*.