Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"trinh phan dot snippets" » "trinh han dot snippets", "trinh quan dot snippets", "thanh phan dot snippets", "trinh nhan dot snippets", "trinh phan do snippets", "trinh phap dot snippets"
"dung cac code snippets" » "luong cac code snippets", "dung cho code snippets", "dung tai code snippets", "dung cac cong snippets", "dung cac co snippets", "dung cac che snippets"

Try widening your search to All Fields.

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