Perhaps you should try some spelling variations:
walking decreases » training decreases (Expand search), taping decrease (Expand search), feeding decreases (Expand search)
decrease walking » increase walking (Expand search), decrease during (Expand search), decrease lodging (Expand search)
work effectively » more effectively (Expand search), to effectively (Expand search), are effectively (Expand search)
decrease their » decrease the (Expand search), increase their (Expand search), decreases the (Expand search)
their decrease » the decrease (Expand search), their disease (Expand search), the decreased (Expand search)
decrease work » decrease or (Expand search), increase work (Expand search), decrease of (Expand search)
decreases to » decreases t (Expand search), decreases mtor (Expand search), decreases the (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 walking decreases to decrease ) OR ( decrease their decrease work effectively ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease walking decreases to decrease ) OR ( decrease their decrease work effectively ))*.