Perhaps you should try some spelling variations:
"bat duc toan snippets" » "bat duc code snippets", "bat duc tan snippets", "bat duc ton snippets", "bat duc hoan snippets", "dat duoc toan snippets", "vat duoc toan snippets", "bat buoc 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 ("bat duc toan snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("bat duc toan snippets"))) OR ("locating bug core snippets")).
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