Perhaps you should try some spelling variations:
function based » reaction based (Expand search), action based (Expand search), reflection based (Expand search)
based plasters » based plastic (Expand search)
decrease pain » decreases pain (Expand search), decrease in (Expand search), decreased brain (Expand search)
pain decrease » can decrease (Expand search), strain decrease (Expand search), taping decrease (Expand search)
decrease test » decreases pest (Expand search), decrease their (Expand search), decrease costs (Expand search)
test process » testing process (Expand search), it process (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 pain decrease test process ) OR ( function based plasters python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease pain decrease test process ) OR ( function based plasters python programming ))*.