Perhaps you should try some spelling variations:
"trinh chat hat snippets" » "tinh chat hat snippets", "trinh luat hat snippets", "trinh han hat snippets", "trinh chat thai snippets", "trinh thuat hat snippets", "trinh chat va snippets", "trinh chat hat slippers"
"dung trong code snippets" » "dung trong cong snippets", "dung trong co snippets", "dung trong che snippets", "dung trong 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 chat hat snippets") or ("dung trong code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh chat hat snippets") OR ("dung trong code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh chat hat snippets ) or ( dung trong code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh chat hat snippets") or ("dung trong code snippets"))) or ("locating bug code snippets"))*.