Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"han duc tang snippets" » "han duc thang snippets", "han duc tan snippets", "han tuc tang snippets", "phan duc tang snippets", "than duc tang snippets", "van duc tang snippets", "han duc tang 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: (((("han duc tang snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han duc tang snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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