Perhaps you should try some spelling variations:
method programming » python programming (Expand search), meta programming (Expand search), period programming (Expand search)
income processes » income process (Expand search), intake processes (Expand search), coke processes (Expand search)
decrease income » increased income (Expand search), decrease intimate (Expand search), decrease sucrose (Expand search)
method method » method methods (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain decrease (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease in decrease income processes ) OR ( python _ method method programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease in decrease income processes ) OR ( python _ method method programming ))*.