Perhaps you should try some spelling variations:
decrease anxiety » decreases anxiety (Expand search), increases anxiety (Expand search), increased anxiety (Expand search)
decrease faster » decrease after (Expand search), decrease further (Expand search), decreased after (Expand search)
anxiety mapped » anxiety caused (Expand search), anxiety based (Expand search), anxiety males (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 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 rate decrease AND decrease ) OR ( decrease faster decrease anxiety mapped ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease rate decrease and decrease ) OR ( decrease faster decrease anxiety mapped ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease rate decrease and decrease ) OR ( decrease faster decrease anxiety mapped ))*.