Perhaps you should try some spelling variations:
"dung vbug code snippets" » "dung vung code snippets", "dung vbug code slippers", "dung vbung code snippets", "dung vbugs code snippets"
"dung ho hat snippets" » "dung cho hat snippets", "dung hoc hat snippets", "dung he hat snippets", "dung ho nhat snippets", "dung hoa hat snippets", "dung ho hat 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: (((("dung vbug code snippets") or ("dung ho hat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung vbug code snippets") OR ("dung ho hat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung vbug code snippets ) or ( dung ho hat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung vbug code snippets") or ("dung ho hat snippets"))) or ("locating bug code snippets"))*.