Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"den hoc can snippets" » "den hoc code snippets", "dien hoc can snippets", "dan hoc can snippets", "de hoc can snippets", "den hoc dan snippets", "den hoc cao snippets", "den hoc cac 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 can snippets"))) or ("locating bug core snippets"))~.
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