Perhaps you should try some spelling variations:
"coder implementation and teaching problem" » "code implementation and teaching problem" (Expand search), "decoder implementation and teaching problem" (Expand search), "model implementation and teaching problem" (Expand search), "coder implementation of teaching problem" (Expand search), "coder implementation and teaching program" (Expand search), "coder implementation and teaching profile" (Expand search), "coder implementation and teaching programs" (Expand search)
"python coding python python programming" » "python codigo python python programming" (Expand search), "action coding python python programming" (Expand search), "python code python python programming" (Expand search), "python codigos python python programming" (Expand search), "python using python python programming" (Expand search), "python coding pythons python programming" (Expand search), "python coding piton python programming" (Expand search), "python coding pitons 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 and teaching problem\") OR (\"python coding python python programming\"))~".
• Removing quotes may allow a broader search: (( coder implementation and teaching problem ) OR ( python coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder implementation and teaching problem") OR ("python coding python python programming"))*.