Perhaps you should try some spelling variations:
"coder classification _ coding problem" » "cover classification _ coding problem" (Expand search), "codes classification _ coding problem" (Expand search), "cover classifications _ coding problem" (Expand search), "coder classification _ coding problems" (Expand search), "coder classification _ coping problem" (Expand search), "coder classification _ loading 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder classification _ coding problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder classification _ coding problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder classification _ coding problem") OR ("api python python python programming"))*.