Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tinh doi dan snippets" » "trinh doc dan snippets", "trinh do dan snippets", "tinh hoc dan snippets", "tinh hoi dan snippets", "tinh doi ban snippets", "tinh doi dau snippets", "tinh doi dan slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("tinh doi dan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tinh doi dan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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