Perhaps you should try some spelling variations:
python detection » motion detection (Expand search), action detection (Expand search), position detection (Expand search)
detection method » detection methods (Expand search), selection methods (Expand search), extraction method (Expand search)
decay processes » levy processes (Expand search), key processes (Expand search), memory processes (Expand search)
decrease decay » decreases pecan (Expand search), decrease fear (Expand search), decrease renal (Expand search)
method python » method method (Expand search), python python (Expand search)
decrease on » decrease in (Expand search), decrease of (Expand search), decrease and (Expand search)
on decrease » on decreased (Expand search), of decrease (Expand search), or decrease (Expand search)

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• Removing quotes may allow a broader search: (( decrease on decrease decay processes ) OR ( python detection method python programming ))~.