Perhaps you should try some spelling variations:
"coder implementation time coding problems" » "code implementation time coding problems" (Expand search), "decoder implementation time coding problems" (Expand search), "model implementation time coding problems" (Expand search), "coder implementation the coding problems" (Expand search), "coder implementation bim coding problems" (Expand search), "coder implementation timing coding problems" (Expand search), "coder implementation time loading problems" (Expand search), "coder implementation time counting problems" (Expand search), "coder implementation time covering problems" (Expand search)
"python on python python programming" » "python on pythons python programming" (Expand search), "python on piton python programming" (Expand search), "python on pitons python programming" (Expand search), "python of python python programming" (Expand search), "python in python python programming" (Expand search), "python and python python programming" (Expand search), "python _ python python programming" (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: "((\"coder implementation time coding problems\") OR (\"python on python python programming\"))~".
• Removing quotes may allow a broader search: (( coder implementation time coding problems ) OR ( python on python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder implementation time coding problems") OR ("python on python python programming"))*.