Perhaps you should try some spelling variations:
"dang toan tran snippets" » "dang tran tran snippets", "dan toan tran snippets", "dung toan tran snippets", "dang thoan tran snippets", "dang tan tran snippets", "dang hoan tran snippets", "dang toan tran slippers"
"dung bug code snippets" » "dung dung code snippets", "dung hung code snippets", "dung rung code snippets", "dung bug core snippets", "dung bug code slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung bug code snippets") or ("dang toan tran snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung bug code snippets") OR ("dang toan tran snippets"))) OR ("locating bug code snippets")).
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