Perhaps you should try some spelling variations:
"cu nhat toan snippets" » "cu nhat code snippets", "cu nhat tan snippets", "cu thuat toan snippets", "cu nhat trang snippets", "chu nhat toan snippets", "cu nhan toan snippets", "lu nhat 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 ("cu nhat 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 ("cu nhat toan snippets"))) OR ("locating bug core snippets")).
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