Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duy hao duc snippets" » "duy phan duc snippets", "duy khac duc snippets", "duy thai duc snippets", "duy dao duc snippets", "duy ho duc snippets", "duy cao duc snippets", "duy hao duc 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: (((("python using java snippets") or ("duy hao duc snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("duy hao duc snippets"))) OR ("locating bug code snippets")).
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