Perhaps you should try some spelling variations:
"coder implementation and reverse problem" » "code implementation and reverse problem" (Expand search), "decoder implementation and reverse problem" (Expand search), "model implementation and reverse problem" (Expand search), "coder implementation of reverse problem" (Expand search), "coder implementation and reversal problem" (Expand search), "coder implementation and inverse problem" (Expand search), "coder implementation and release problem" (Expand search), "coder implementation and adverse problem" (Expand search)
"python code python python programming" » "python code pythons python programming" (Expand search), "python code piton python programming" (Expand search), "python code pitons python programming" (Expand search), "python codigo python python programming" (Expand search), "python pacote python python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder implementation and reverse problem") OR ("python code python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder implementation and reverse problem\") OR (\"python code python python programming\"))*".
• Removing quotes may allow a broader search: (( coder implementation and reverse problem ) OR ( python code python python programming ))*.