Perhaps you should try some spelling variations:
"coder coding _ triangular problem" » "coder coding _ singular problem" (Expand search), "coder coding _ triangle problem" (Expand search), "coder coding _ triangulation problem" (Expand search), "modern coding _ triangular problem" (Expand search), "color coding _ triangular problem" (Expand search), "odor coding _ triangular 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 coding _ triangular problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding _ triangular problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coding _ triangular problem ) OR ( api python python python programming ))*.