Perhaps you should try some spelling variations:
"coder coder pattern obstacle problem" » "coder cover pattern obstacle problem" (Expand search), "coder cover patterns obstacle problem" (Expand search), "coder powder pattern obstacle problem" (Expand search), "coder decoder pattern obstacle problem" (Expand search), "code code pattern obstacle problem" (Expand search), "decoder codec pattern obstacle problem" (Expand search), "coder coder pattern obstacles 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 pattern obstacle problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder pattern obstacle problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder pattern obstacle problem ) OR ( api python python python programming ))*.