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