Perhaps you should try some spelling variations:
"coder classification using coding problem" » "cover classification using coding problem" (Expand search), "codes classification using coding problem" (Expand search), "cover classifications using coding problem" (Expand search), "coder classification and coding problem" (Expand search), "coder classification _ coding problem" (Expand search), "coder classification using coding problems" (Expand search), "coder classification using coping problem" (Expand search), "coder classification using loading problem" (Expand search), "coder classification using coating problem" (Expand search), "coder classification using cooking problem" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search), "rpa python 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 classification using coding problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder classification using coding problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder classification using coding problem ) OR ( api python python python programming ))*.