Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phan mi mach snippets" » "phan moi mach snippets", "phan mo mach snippets", "phan bi mach snippets", "phan vi mach snippets", "phan tim mach snippets", "phan mai manh snippets"

Try widening your search to All Fields.

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