Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phan ban van snippets" » "phan banh van snippets", "phan van van snippets", "phan ba van snippets", "phan ban dan snippets", "phan ban va snippets", "phan tan van snippets"

Try widening your search to All Fields.

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