Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"luan den nen snippets" » "quan den nen snippets", "luan de nen snippets", "luan len nen snippets", "luan tren nen snippets", "luan dieu nen snippets", "luan dung nen snippets", "luan den nen 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 ("luan den nen snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("luan den nen snippets"))) OR ("locating bug code snippets")).
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