Perhaps you should try some spelling variations:
"coder coder challenges basis problem" » "coder modern challenges basis problem" (Expand search), "coder mode challenges basis problem" (Expand search), "coder borders challenges basis problem" (Expand search), "coder coder challenges basic problem" (Expand search), "coder coder challenges based problem" (Expand search), "coder coder challenges rasi problem" (Expand search), "coder coder challenges basic problems" (Expand search), "coder coder challenges mass problem" (Expand search), "coder coder challenges this problem" (Expand search), "coder decoder challenges basis problem" (Expand search), "code code challenges basis problem" (Expand search), "decoder codec challenges basis 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 challenges basis problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder challenges basis problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder challenges basis problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder challenges basis problem") OR ("api python python python programming"))*.