Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dam nhan lan snippets" » "dam phan lan snippets", "cam nhan lan snippets", "dac nhan lan snippets", "dam nhan luan snippets", "dam nhan lang snippets", "dam nhan dan snippets", "dam nhan lan 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: (((("dam nhan lan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dam nhan lan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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