Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cac toan cho snippets" » "cac toan code snippets", "cac khoan cho snippets", "hach toan cho snippets", "cac thanh cho snippets", "cac toan cao snippets", "cac toan chi snippets", "cac toan ho 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: (((("cac toan cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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