Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dan bac data snippets" » "dan big data snippets", "dan bac dai snippets", "dan a data snippets", "dan ba data snippets", "van bac data snippets", "dong bac 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 ("dan bac data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dan bac data snippets"))) OR ("locating bug core snippets")).
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