Perhaps you should try some spelling variations:
"trinh so bi snippets" » "trinh do bi snippets", "trinh co bi snippets", "trinh su bi snippets", "trinh so di snippets", "trinh so li snippets", "trinh so ki snippets", "trinh so 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 so 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 so bi snippets") OR ("dung bug code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh so bi snippets ) or ( dung bug code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh so bi snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))*.