Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"pham san bat snippets" » "pham van bat snippets", "pha san bat snippets", "pham lan bat snippets", "pham san bai snippets", "pham san bao snippets", "pham sen bat snippets", "pham san bat 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: (((("pham san bat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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