Perhaps you should try some spelling variations:
"lam duc toan snippets" » "lam duc code snippets", "lam duc tan snippets", "lam duc ton snippets", "lam duc hoan snippets", "lam duoc toan snippets", "pham duc toan snippets", "nam duoc toan snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data 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 ("lam duc toan snippets"))) or ("locating bug core snippets"))~.
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