Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"can cau cuu snippets" » "can cau code snippets", "van cau cuu snippets", "ban cau cuu snippets", "ca cau cuu snippets", "can cap cuu snippets", "can cau cua snippets", "can cau chu 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: (((("can cau cuu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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