Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"van san nhat snippets" » "van lan nhat snippets", "van dang nhat snippets", "van tran nhat snippets", "van sang nhat snippets", "van ban nhat snippets", "van son nhat snippets", "van 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: (((("van 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: (((("van san nhat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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