Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan cho toc snippets" » "dan cho code snippets", "danh cho toc snippets", "san cho toc snippets", "dac cho toc snippets", "dan cho hoc snippets", "dan cao toc snippets", "dan cho toa 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 ("dan cho toc snippets"))) or ("locating bug core snippets"))~.
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