Perhaps you should try some spelling variations:
decrease placing » decrease replacing (Expand search), disease placing (Expand search), decreases weaning (Expand search)
decrease strain » increase strain (Expand search), decreases pain (Expand search), decreased brain (Expand search)
strain decrease » strains increases (Expand search), stress decreases (Expand search)
decreases areas » decreases breast (Expand search), decreases airway (Expand search), decreases aedes (Expand search)
placing objects » teaching objects (Expand search), speaking objects (Expand search), flying objects (Expand search)
areas decrease » urea decrease (Expand search), areas increase (Expand search), break decrease (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (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 strain decrease AND decrease ) OR ( decreases areas decrease placing objects ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease strain decrease and decrease ) OR ( decreases areas decrease placing objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease strain decrease and decrease ) OR ( decreases areas decrease placing objects ))*.