Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dang noi trinh snippets" » "dang doi trinh snippets", "dang ngoai trinh snippets", "dang hoi tinh snippets", "nang noi trinh snippets", "dang khoi trinh snippets", "dang ngoc trinh snippets", "dang noi trinh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"

Try widening your search to All Fields.

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