Perhaps you should try some spelling variations:
"coder coder human walking problem" » "coder coder human walking problems" (Expand search), "coder coder human packing problem" (Expand search), "coder coder human halting problem" (Expand search), "coder decoder human walking problem" (Expand search), "code code human walking problem" (Expand search), "decoder codec human walking problem" (Expand search), "coder poder human walking problem" (Expand search), "coder modern human walking problem" (Expand search), "coder poder humano walking 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 coder human walking problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder human walking problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder human walking problem ) OR ( api python python python programming ))*.