Perhaps you should try some spelling variations:
decrease optimal » decrease intimate (Expand search), discrete optimal (Expand search), decrease stigma (Expand search)
optimal training » optimal trading (Expand search), optimum training (Expand search), optimal timing (Expand search)
decrease taping » decrease walking (Expand search), decrease during (Expand search), decrease owing (Expand search)
taping decrease » training decreases (Expand search)
rate decreased » rate decrease (Expand search), rats decreased (Expand search), are decreased (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
decreased to » decreased the (Expand search), decreased tgf (Expand search), decreased in (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 taping decrease optimal training ) OR ( decrease rate decreased to decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease taping decrease optimal training ) OR ( decrease rate decreased to decrease ))*.