Perhaps you should try some spelling variations:
"coder coding decoding based challenges" » "coder coding decoding based challenge" (Expand search), "coder coding decoding cases challenges" (Expand search), "coder coding decoding asd challenges" (Expand search), "coder encoding decoding based challenges" (Expand search), "coder reading decoding based challenges" (Expand search), "coder joint decoding based challenges" (Expand search), "coder coding precoding based challenges" (Expand search), "coder coding coding based challenges" (Expand search), "coder coding encoding based challenges" (Expand search), "modern coding decoding based challenges" (Expand search), "color coding decoding based challenges" (Expand search), "odor coding decoding based challenges" (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 coding decoding based challenges") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding decoding based challenges\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding decoding based challenges ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding decoding based challenges") OR ("api python python python programming"))*.