Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cung toan ho snippets" » "cung toan code snippets", "dung toan ho snippets", "cong toan ho snippets", "cung tan ho snippets", "cung toan hoc snippets", "cung toan khoa snippets", "cung toan cao 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 ("cung toan ho snippets"))) or ("locating bug core snippets"))~.
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