Perhaps you should try some spelling variations:
disease placing » disease facing (Expand search), disease lacking (Expand search), disease pain (Expand search)
decrease burden » disease burden (Expand search), decrease further (Expand search)
placing objects » teaching objects (Expand search), speaking objects (Expand search), flying objects (Expand search)
burden disease » bursal disease (Expand search)
decrease cell » decreases cell (Expand search)
cell decrease » cells decrease (Expand search), cells decreases (Expand search), will decrease (Expand search)
decrease toc » decrease of (Expand search), decrease the (Expand search), decreased to (Expand search)
toc decrease » to decrease (Expand search), the decrease (Expand search), not decrease (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( decrease cell decrease toc decrease ) OR ( decrease burden disease placing objects ))~.