Perhaps you should try some spelling variations:
"coder coder biased sampling program" » "coder coder biased labeling program" (Expand search), "coder coder biased smoking program" (Expand search), "coder coder biased jumping program" (Expand search), "coder coder based sampling program" (Expand search), "coder coder biased samples program" (Expand search), "coder code based sampling program" (Expand search), "coder foder based sampling program" (Expand search), "coder codec based sampling program" (Expand search), "coder decoder biased sampling program" (Expand search), "code code biased sampling program" (Expand search), "decoder codec biased sampling program" (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 biased sampling program") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder biased sampling program\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder biased sampling program ) OR ( api python python python programming ))*.