Perhaps you should try some spelling variations:
"trinh tam trong snippets" » "trinh tai trong snippets", "trinh toan trong snippets", "trinh cham trong snippets", "trinh nam trong snippets", "trinh lam trong snippets", "trinh pham trong snippets", "trinh tam trong slippers"
"dung dung code snippets" » "duong dung code snippets", "ung dung code snippets", "dung ung code snippets", "dung dung cong snippets", "dung dung co snippets", "dung dung de snippets", "dung dung code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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