Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"duy phan kem snippets" » "duc phan kem snippets", "dung phan kem snippets", "duy khanh kem snippets", "duy phan kiem snippets", "duy phan mem snippets", "duy phap kem snippets", "duy phan kem 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 phan kem 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 phan kem snippets"))) OR ("locating bug code snippets")).
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