Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung nam cau snippets" » "dung nam code snippets", "dong nam cau snippets", "dung lam cau snippets", "sung nam cau snippets", "dung nam cao snippets", "dung nam cac snippets", "dung nam ca 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: (((("dung nam cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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