Perhaps you should try some spelling variations:
"coder precoding retscan efficient coding" » "coder precoding design efficient coding" (Expand search), "coder precoding between efficient coding" (Expand search), "coherent precoding retscan efficient coding" (Expand search), "linear precoding retscan efficient coding" (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 precoding retscan efficient coding") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoding retscan efficient coding\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder precoding retscan efficient coding ) OR ( api python python python programming ))*.