Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"doan van san snippets" » "doan va san snippets", "hoang van san snippets", "luan van san snippets", "doan van sang snippets", "doan van ban snippets", "doan van son snippets", "doan van san slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("doan van san snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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