Perhaps you should try some spelling variations:
"coder coder path theory problem" » "coder coder path theory problems" (Expand search), "coder coder path the problem" (Expand search), "coder coder path theory program" (Expand search), "coder decoder path theory problem" (Expand search), "code code path theory problem" (Expand search), "decoder codec path theory problem" (Expand search), "coder coder graph theory problem" (Expand search), "coder lower path theory problem" (Expand search), "coder under path theory 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 path theory problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder path theory problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder path theory problem ) OR ( api python python python programming ))*.