Perhaps you should try some spelling variations:
"trinh chu bi snippets" » "trinh cau bi snippets", "trinh cho bi snippets", "trinh thuc bi snippets", "trinh chu vi snippets", "trinh cuu bi snippets", "trinh chuan bi snippets", "trinh chu bi 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"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("trinh chu bi 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 chu bi snippets") OR ("dung bug code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh chu bi snippets ) or ( dung bug code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh chu bi snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))*.