Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khan lan san snippets" » "phan lan san snippets", "khanh luan san snippets", "khanh van san snippets", "khan luan san snippets", "khan lam san snippets", "khan han san snippets", "khan lan 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: (((("khan lan san snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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