Perhaps you should try some spelling variations:
"coder coding _ buffer coding" » "coder coding _ under coding" (Expand search), "modern coding _ buffer coding" (Expand search), "color coding _ buffer coding" (Expand search), "odor coding _ buffer 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 coding _ buffer coding") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding _ buffer coding\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding _ buffer coding ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding _ buffer coding") OR ("api python python python programming"))*.