Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"ivan hoc van snippets" » "van hoc van snippets", "van hoa van snippets", "toan hoc van snippets", "ivan hoc dan snippets", "ivan hoc va snippets", "ivan hoc vat 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 ("ivan hoc van snippets"))) or ("locating bug core snippets"))~.
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