Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"phan hoan wu snippets" » "phap hoan wu snippets", "phan hoa wu snippets", "pham hoang wu snippets", "phan hoang tu snippets", "phan hoang vu snippets", "phan hoan cua snippets", "phan hoan wu 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: (((("phan hoan wu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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