Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khi toan can snippets" » "khi toan code snippets", "chi toan can snippets", "ke toan can snippets", "bai toan can snippets", "khi toan ban snippets", "khi toan cao snippets", "khi toan cau 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 ("khi toan can snippets"))) or ("locating bug core snippets"))~.
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