Perhaps you should try some spelling variations:
"dung cach hoan snippets" » "dung cach code snippets", "dung cac hoan snippets", "dung sach hoan snippets", "dong cach hoan snippets", "dung cac khoan snippets", "dung hach toan snippets", "dung sach han snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung cach hoan snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
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