Perhaps you should try some spelling variations:
"coder coder on triangular problem" » "coder coder on singular problem" (Expand search), "coder coder on triangle problem" (Expand search), "coder coder on triangulation problem" (Expand search), "coder coder of triangular problem" (Expand search), "coder coder in triangular problem" (Expand search), "coder coder and triangular problem" (Expand search), "coder decoder on triangular problem" (Expand search), "code code on triangular problem" (Expand search), "decoder codec on triangular problem" (Expand search), "coder code on triangular problem" (Expand search), "coder codes on triangular problem" (Expand search), "coder powder on 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 coder on triangular problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder on triangular problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder on triangular problem ) OR ( api python python python programming ))*.