Perhaps you should try some spelling variations:
"trinh tinh sang snippets" » "trinh kinh sang snippets", "trinh tin sang snippets", "trinh dinh sang snippets", "trinh tinh quang snippets", "trinh tinh trang snippets", "trinh trinh san snippets", "trinh tinh sang slippers"
"dung bug code snippets" » "dung dung code snippets", "dung hung code snippets", "dung rung code snippets", "dung bug code slippers", "dung bug core snippets"
"locating bug code snippets" » "locating bug code slippers", "locating bug core snippets"

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