Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tiep cua can snippets" » "tiep cua code snippets", "tiep can can snippets", "dieu cua can snippets", "tap cua can snippets", "tiep cua cac snippets", "tiep cua ban snippets", "tiep cua dan 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: (((("tiep cua can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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