Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan tiep cua snippets" » "dan tiep code snippets", "van tiep cua snippets", "dan thiet cua snippets", "dang tien cua snippets", "dan tiep can snippets", "dan dieu cua snippets", "dan tap cua 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: (((("dan tiep cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan tiep cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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