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