Perhaps you should try some spelling variations:
"trinh dung code snippets" » "trinh dung cong snippets", "trinh dung co snippets", "trinh dung de snippets", "trinh dung code slippers"
"dung dinh dat snippets" » "dang dinh dat snippets", "dung dich dat snippets", "dung ninh dat snippets", "dung dinh ket snippets", "dung dinh van snippets", "dung dinh lam snippets", "dung dinh dat slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("trinh dung code snippets") or ("dung dinh dat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh dung code snippets") OR ("dung dinh dat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh dung code snippets ) or ( dung dinh dat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh dung code snippets") or ("dung dinh dat snippets"))) or ("locating bug code snippets"))*.