Perhaps you should try some spelling variations:
"coder coder and challenge based" » "coder coder and challenge and" (Expand search), "coder coder and challenges based" (Expand search), "coder coder _ challenge based" (Expand search), "coder decoder and challenge based" (Expand search), "code code and challenge based" (Expand search), "decoder codec and challenge based" (Expand search), "coder code and challenge based" (Expand search), "coder codes and challenge based" (Expand search), "coder poder and challenge based" (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 and challenge based") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder and challenge based\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder and challenge based ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder and challenge based") OR ("api python python python programming"))*.