Perhaps you should try some spelling variations:
"coder coder two samples problem" » "coder coder two sample problem" (Expand search), "coder coder two sample problems" (Expand search), "coder coder two families problem" (Expand search), "coder decoder two samples problem" (Expand search), "code code two samples problem" (Expand search), "decoder codec two samples problem" (Expand search), "coder coder two sampling problem" (Expand search), "coder under two samples problem" (Expand search), "coder over two samples problem" (Expand search), "coder order two samples 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 two samples problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder two samples problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder two samples problem ) OR ( api python python python programming ))*.