Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhat theo so snippets" » "nhat theo code snippets", "nhat nheo so snippets", "pham theo so snippets", "nam theo so snippets", "nhat theo bo snippets", "nhat theo doi snippets", "nhat theo don 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: (((("nhat theo so snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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