Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cac toan hoc snippets" » "cac toan code snippets", "cac khoan hoc snippets", "hach toan hoc snippets", "cac thanh hoc snippets", "cac toan khoa snippets", "cac van hoc snippets", "cac hoa hoc 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: (((("python using java snippets") or ("cac toan hoc snippets"))) or ("locating bug core snippets"))~.
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