Perhaps you should try some spelling variations:
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 that » decrease the (Expand search), decrease at (Expand search), decrees that (Expand search)
that decrease » that increase (Expand search), that increases (Expand search), not decrease (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), to decrease (Expand search)
decrease work » decrease or (Expand search), increase work (Expand search), decrease of (Expand search)
work sector » works sector (Expand search), cork sector (Expand search), dark sector (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 that decrease rate decrease ) OR ( decrease burden decrease work sector ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease that decrease rate decrease ) OR ( decrease burden decrease work sector ))*.