Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"den hoc doi snippets" » "den hoc code snippets", "dien hoc doi snippets", "dan hoc doi snippets", "de hoc doi snippets", "den hoc dai snippets", "den hoc noi snippets", "den hoc moi 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 ("den hoc doi snippets"))) or ("locating bug core snippets"))~.
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