Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dung le lan snippets" » "dung len lan snippets", "dung he lan snippets", "dung de lan snippets", "dung le lang snippets", "dung le luan snippets", "dung le dan snippets", "dung le 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: (((("dung le 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: (((("dung le lan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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