Perhaps you should try some spelling variations:
"coder coding using persistence problem" » "coder coding using persistence problems" (Expand search), "coder coding using persistente problema" (Expand search), "coder coding using resistance problem" (Expand search), "coder coding using persistent problem" (Expand search), "coder coding turing persistente problem" (Expand search), "coder coding voting persistence problem" (Expand search), "modern coding using persistence problem" (Expand search), "color coding using persistence problem" (Expand search), "odor coding using persistence problem" (Expand search), "coder loading using persistence problem" (Expand search), "coder modeling using persistence problem" (Expand search), "coder drying using persistence 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 coding using persistence problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding using persistence problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding using persistence problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding using persistence problem") OR ("api python python python programming"))*.