Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung van toa snippets" » "dung van code snippets", "duong van toa snippets", "dung va toa snippets", "dang van toa snippets", "dung van toan snippets", "dung van hoa snippets", "dung van toi 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: (((("dung van toa snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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