Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phap hoc du snippets" » "phap hoc code snippets", "phap hoan du snippets", "phap mo du snippets", "phap han du snippets", "phap hoc duc snippets", "phap hoc dau snippets", "phap hoc dua snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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