Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"mat san nhat snippets" » "mat lan nhat snippets", "mat dang nhat snippets", "mat tran nhat snippets", "may san nhat snippets", "mat dan nhat snippets", "mat can nhat snippets", "mat san nhat 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: (((("mat san nhat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mat san nhat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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