Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dung cac code snippets" » "luong cac code snippets", "dung tai code snippets", "dung cua code snippets", "dung cac cong snippets", "dung cac co snippets", "dung cac che snippets", "dung cac code slippers"
"dung cho dat snippets" » "dung chon dat snippets", "dung cho dao snippets", "dung cho dap snippets", "dung cho dat slippers"

Try widening your search to All Fields.

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