Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"doi sach san snippets" » "doc sach san snippets", "moi sach san snippets", "do sach san snippets", "doi sach han snippets", "doi khach san snippets", "doi sach danh snippets", "doi sach san 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 ("doi sach san snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("doi sach san snippets"))) OR ("locating bug code snippets")).
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