Perhaps you should try some spelling variations:
"python effective implementation" » "python effective prevention" (Expand Search), "proven effective implementation" (Expand Search), "1_the effective implementation" (Expand Search), "2_the effective implementation" (Expand Search)
"python model implementation" » "python modular implementation" (Expand Search), "python world implementation" (Expand Search), "python time implementation" (Expand Search), "python code implementation" (Expand Search), "python tool implementation" (Expand Search), "action model implementation" (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: "((\"python model implementation\") OR (\"python effective implementation\"))~".
• Removing quotes may allow a broader search: (( python model implementation ) OR ( python effective implementation ))~.
• Adding a wildcard symbol may retrieve word variants: (("python model implementation") OR ("python effective implementation"))*.