Perhaps you should try some spelling variations:
"dung cauc code snippets" » "dung cac code snippets", "dung cau code snippets", "dung cua code snippets", "dung cuauc code snippets", "dung cacuc code snippets", "dung camuc code snippets", "dung cauc core snippets"
"dung ca cua snippets" » "dung cua cua snippets", "dung cac cua snippets", "dung cam cua snippets", "dung co cua snippets"
"locating bug code snippets" » "locating bug core snippets", "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 ca cua snippets") or ("dung cauc code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung ca cua snippets") OR ("dung cauc code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ca cua snippets ) or ( dung cauc code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ca cua snippets") or ("dung cauc code snippets"))) or ("locating bug code snippets"))*.