Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"mau cac nhan snippets" » "mau ca nhan snippets", "mau cac nha snippets", "mau cam nhan snippets", "mau cau nhan snippets", "ma cac nhan snippets", "mau sac nhan snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("mau cac nhan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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